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Hello Everyone....!!

Here is the most awaited post of GATE Overflow TEST SERIES for GATE CSE - 2021.

You can check the complete details of the Test Series in the below link....!! If you have any doubts can drop a comment to this post..!!


EDIT: The test series will be as per the updated syllabus for GATE 2021 and will be having Multiple Select Questions from mid August onwards. 


Features of the Test Series

  1. All questions newly formed and verified by GATE Overflow team
  2. Emphasis on coverage of all question types in GATE 
  3. Both technical as well as grammatical errors are proofread before test creation
  4. Tests can be taken any time from the creation date
  5. Detailed solution will be provided for all the test questions with option for commenting doubts
  6. Questions will be on GATE Overflow site and visible only to those who have taken tests
  7. Any change in answer key will be updated immediately and notified to all takers
  8. Any wrongly answered question will be automatically added to “Wrongly Attempted” Question list which you can view anytime for revision
  9. Tests consists of three types
    1. 21 Subject wise tests which includes 20 two-marks and 10 one-marks questions for 50 marks and 90 minutes
    2. 5 Mix-subjects tests which will include questions from multiple subjects and same marking scheme as subject wise tests
    3. 5 full length mock tests in the exact format as actual GATE (65 questions, 100 marks, 180 minutes)
  10. Test Interface can be tried here (Tests by Mentors and Previous year tests are available for GATE, UGCNET etc. which can be taken freely by any user)

Click here for Schedule of GATE Overflow Test Series for GATECSE 2021

Subscribe Now for Rs. 1200. (The test access will be removed by May 15 and those who are subscribing for GATE 2022 please wait until May 1 when new schedule and subscription shall be shared) 

posted May 26, 2020 in From GO Admins
edited Oct 26, 2020 by


sir can you please add amazon pay wallet in the wallet section to pay for the test series if possible
hello, I want to know that all the tests will launch as per schedule or in one go ?????

or what is the timetable to attempt the tests???
It'll be online as per the given schedule.

@pranav sorry. Adding more payment options is not possible as of now.
Will the test have to be taken on the scheduled time only or it can be taken anytime after scheduled date?

@Satyaki Guha

You can give test anytime after the schedule date or on the scheduled date.

Can somebody purchase it after June 7,

if yes, what will be it's price?
The price will be the same till June 30th.
where can i see tests?

First test will be live by 6pm tomorrow as per schedule. You can check this link for same: From next week onwards the registered people will get an email link for same. 

thanks for the response.
for doubt clearing what will be the process?

Any group will be created or the same as GO Comment and reply process?
All questions will be on GO only and visible for those who have taken. And doubts if any will be cleared through comments as usual.

It is visible to me and i haven't taken test.

Yes, Verbal ability questions are open. Some of the subject questions will be open to everyone.


I think Verbal Ability questions are not open for everyone, Because this link(

is directing me to Test Series Notification Page. Please let me know whether the verbal ability questions are available for everyone or not..? 

Edit 1:-

it's working fine now. thanks for the clarification.

It  is visible only for discussion, under questions section and not in exam section
I payed 1000 Rs 4 days ago but no any msg came to verify that you are purchased test series of gate overflow.

Your transaction was a failure right?

Payment Amount        1000.0    
    Payment Id        325392859    
    Merchant Transaction Id        609364-325392859    
    Date/Time of Transaction        2020-06-01 20:05:46.0    
    Failure Message        Transaction declined

@SarathBaswa please click on question

I have purchased the test series. But till now, the second test of Aptitude has not appeared in my mail nor in Gate Overflow.

Second test is already live: 

The mail was sent to only those who gave Verbal Ability test, from next week it should be for all subscribers. 

Sir, Can I give the test on another day? Will it remain accessible even the test was live?
you can take test at any time and on any day after test was live.

The GATE prev yr  tests(full len and subject wise) that were free earlier are now locked and want me to pay 750rs

if i buy this test series can i use those tests as well or not??

The full length previous year tests can be taken by anyone rt? And subject wise previous year tests were for GATE2020 and those will be removed soon. When those are added for GATE2021, that will be free. The verified user subscription is only for the things mentioned here:
I have not recieved test series link yet .
I paid 1000 rupees but didn't get any testseries link , when i click to take test it ask me to pay again . please help
You have received right?
when will gate 2021 subwise pyq tests added??till then can we not give 2020 tests??
i tried giving few its asking me to pay 750rs
Yes , thanks for fast action . now i can give tests .

@Surya911 You're welcome.

@salini319 That was an error, you should be able to give them now. 

thankyou so much
sir , what about go classroom ?
If someone purchases the test series and after some time without giving any test requests for refund of money, then how much percent will be refunded?
Refund will be given for such cases if applied within a week. But for now, anyone can apply for cancellation until June 30.
on what time will be today's test?
Today's test will be late - either midnight or early tomorrow.
Can you check now?
Yeah, Now it's on.

@gatecse Arjun sir I paid for the test series on 4th June, 7:21PM. I tried to take the C Programming exam from this account (same email as the one I provided) but it keeps redirecting me back here. Is there anything else I need to do?

Can you try now?
Works now, thank you!
One point which I wanted to highlight, In digital logic 1 test what I have observed is nothing much has been covered from combinational circuits portion ( Week 7 - Digital Logic Preparation included combinational circuits). Please clarify if that will be covered in any upcoming test, as it was mentioned for Sequential Circuits portion which is going to be covered in mix test ? Is there any other placeholder where we can share feedback ?
yes, I guess only 2 questions were from Combinational Circuits. Any topic which is less represented in subjectwise tests will have more representation in Mix-subjects. Also some topics are less represented in subjectwise tests because they will be combined with other subjects for mix-subjects tests.
And for exam specfic queries, you can post on the exam page -- theres a Disqus comment box for it.
i am not able to take test. test interface not coming after clicking on link. it falls in a loop. please help.
You can check now.
Sir I have just paid 1200 for gate 2021 test series but when i try to give some test of 2021 it redirects me to the payment gateway.
Did you use a different email for payment?
yes sir
Sir when will i get the access?
You can check now for access..

It is said that the top contributors except the mods get free access to the test series but I cannot give. I am in the list in .

Please look into it. Thanks in advance.

@Mellophi You have the access to Test Series. Can check now and confirm...


Does the test series contain the new topics added for GATE 2021 ? If no, when they will be added ?
Yeah I can access thank you :)

Can I access it only for 1 week?

Test Series will be as per the updated syllabus.

@Mellophi Of course not. It'll be until GATE 2021.

gatecse Even my name is showing in the list of top users on, will I get access ? Thanks in advance.

"Weekly Top User": It is only one person per week. Not everyone in the list. Also, the top user at end of a week -- not on each day.
Thanks for the clarification.

Suppose if someone is the top user of the week, then should he ask you to give access to Test Series..?


 will they be given access automatically by you...?
it'll be automatic.
What do we need to do after paying the fees?
You can access complete Test Series from then..!!
sir, test summary of some free tests which i have taken months ago (like test by rituraj and Gate 2019 test) is not showing now...
oh. Can you show a screenshot of the exam results listing page?

Like this one--

If i click on Result then it tries to open but page doesn't load..


And i am not downloading every test result summary pdf.. hoping that it will be always available on GO

How do I access the "Wrongly Attempted" list? Is it combined for all tests, or separate for each test?

Go to the LISTS option on your left hand side and then go to wrongly attempted option.

@Verma Ashish That should work. I just checked. May be you tried when the server was busy. That takes some time to load.

Exam results will be there until GATE 2021. 

@arjun sir, can you please upload previous year GATE papers as tests themselves?

My Points are Not Increasing, Even though I'm Solving Doubts



Points will increase based on the rules for points. You wont get points for unwanted posts.

@Rohan They are already under "GATE" category
Sir When are you going to upload new schedule ?? for effective planning
It'll be done today
My test status is not getting updated, after submitting test it again says "You are yet to take this exam". I tried reloading and submit multiple times, but nothing worked. Sir please look into it.
How much time did you spend on the test? If it's too less, test result will be ignored.
In first attempt only 20 minutes were left.

@arjun sir 

Gateoverflow website is not showing result after giving previous year full paper exam. after submitting  “” this link is not showing anything completely blank. i am observing it from 3 days. i gave 2019, 2018 previous year but result is not coming. please check this.

when i am attending 10 20 question and then submit then it is showing result but if i solve all questions then submitting then this “” is unresponsive. i am facing it everyday. 


@gatecse “” is unresponsive.

Gateoverflow website is not showing result after giving previous year full paper exam. after submitting  “” this link is not showing anything completely blank. i am observing it from 3 days. i gave 2019, 2018 previous year but result is not coming. please check this.


Are you seeing the result button on those exam pages? Please do not post repeated messages. No tagging works on the site as they have been removed due to abusive usage.
Yes result button is showing but after clicking on that nothing is coming.just  Blank page will be there.
Can you try once more now?
Just now I checked still it is showing nothing. Can you please once see it. I am facing this issue after every test completion.
This is not reproducible to us. I would suggest to try in incognito mode. Some previous cache data might be causing this.
I tried every possibility incognito , other browser all this but nothing is working. Same blank page coming.
Being a serious issue would you mind sending your password to [email protected] ?
Sent. Pls check your mail.
Even there is false update of marks in result section.

For example: I already gave the test earlier with some x marks.

Now I gave it again with y marks.

But, unfortunately my marks are updated to 0.
yes that is also happening with me in GATE2020 test. after this test for me now no result is coming. @yarunsharma have you given any previous year gate full length test within these 7 days and able to see the result .
when i inspect the element i got this error is coming ."Failed to load resource: the server responded with a status of 500 (Internal Server Error)"
Thanks. Can you see now?
Thanku so much. Now able to see everything perfectly
Great. You're welcome 😊
Sir i have taken GO Test Series 2021  But i am not getting discussion page where i can find detailed explanation  please help...
You can click on questions, solutions is there.

sir please check these screenshots i am getting on clicking on question

Did you take a fake test? Unless you spend some 20 minutes at least on the test, you result will be ignored and you wont be able to see the questions too.
sir i have spend 27 minutes on test is that is what is the issue is ? Arjun SIr Thanks for your reply.
That should be enough. Was result page displayed to you?
yes result page has displayed
Oh. Can you quickly retake the test for at least 1 minute and see?
still same issue? sir please resolve the issue asap Thanks.
You're having access to DM-1 questions. You're logged in while seeing the page rt? Also have you checked view only previous year questions on your account page?
Thanks to gatecse problem is resolved actually my setting was to see questions only.
Sir you are not uploading tests according to schedule ?? Why is that sir ??
Yesterdays test will be up today. All other tests are already up as per schedule rt?
Hi Team,

I paid for the GO test series 2021 ( Payment id- 356196295) but the web page did not refresh back to GO page, got struck at payment successfully page. Please help me in resolving this issue.
You have got access rt?
I got access to test series. Thank you.
sir ,i have registered and paid for the test series but no credentials and password for the test series came in
You should have got access rt? Just to know, are emails not being coming for tests?
nothing cam,no confirmation from gateoverflow or anything like that .only a paymentconfirmation
Oh okay. I'll check. But you have access and can take tests now.
this may look silly ,if you can help me with the link of the test page .Thank you

It is there on the schedule link of the post

You can also see the Exams tab -- because there are a lot of other tests too available there. 

thank you so much ,but on clicking on it ,it's showing you are yet to take the test .But  am not getting any link to sit for the test , i mean the topic tests ones
You have to click on Take Test button there.
sir after clicking on take exam link it is taking me to next page where there are fields for registration no and password but no Take Test button is there
Probably you must be using zoom on your browser. If you make it 100% or lower zoom, submit button should come.
thank you, sir it was the problem

I have made the payment.payment Id - 365044082.when I will get the access

in my go test series database test 1 is still not uploaded which was supposed to be uploaded on 5 october. what shud i do now
Database test is already up -- you can see on exams page.

@mrinmoy you should have access already
sir in my go test series mix test 3 is not showing up but its uploading date was 12 october.
Mix3 will be up only by tomorrow. Sorry for the delay.
unable to login to these tests...when I am clicking on take test button it is showing this schedule page. why is it so? Admins please help.
where is the website to access the test series. i have paid the money  but not finding out how to access the tests.

@Anwesha_Mishra Can you see now?

@amitkumar.chottu58 The welcome email might have gone to spam. You can access the tests via the "Exams" tab of this site or the Test exams are indexed here: -- this link is given as "Schedule" in this post. 


please do reply doubts regrading test series question.I don't get any reply of my comment.

Doubts are answered with priority given to any ambiguities in question/solution. Considering the large number of questions and lot of takers -- not every comment can be answered.
Yeah! Fine now. Thanks! @gatecse
till now i was able to give tests ,suddenly unable to login to these tests...when I am clicking on take test button it is showing this  page. why is it so? Admins please help.
For which test login is not working?
Newly added Go2021 linear algebra test. Before that able to give exam for all other tests.
That's strange. I'll check and update you.
Any update on this @gatecse
There is nothing wrong with the exam settings. Are you able to give other exams now? Can you try after clearing the cache/cookies?
no not able to access but why ?
Are you registered for the tests?
no but why i was able too access earlier :p
That might be a mistake
@gatecse. I enrolled in the testseries in the first week itself. Now whem I'm clicking on take test I'm getting redirected to register page. Please solve this issue.
Should work now 👍


I registered GATE Overflow Test Series for GATE CSE 2021 using 1200 rues but still i don't receive any mail.please sir guide me.
Payment id : 374008373 , I don't have access to tests. And also did not receive any welcome mail yet (checked my spams too)
Sir, I paid 1200 rupees but still, don't receive any mail for test series link please help
@shashank, pushpita You should be having access now.

@warrior which email did you use for payment?
[email protected]

payment id=379143486
You should have access now 👍
I am unable to access the schedule.
I have a subscription for test series of Rs. 1200.But from Go2021 operating system2 , Go2021Compiler Design 1 and so on till last no link is there to access these test .Please help..
@gatecse when remaining tests will be uploaded ? OS 2, Compiler design 1 not uploaded yet.

OS 2 test, will be uploaded soon. After that compiler design test.

@, did you took all the GO tests, or simply waiting for new tests?

Please update the new schedule accordingly .. corresponding dates of upcoming tests .
I already paid for test series of gate-2021 but till now i did not get any access.can you pease solve this issue as soon as possible.

You should have access already.
I paid for GO test series. Within how many days can I get the access ?
Access should happen immediately if you use your GO email ID for payment. Otherwise please mail to "[email protected]"
I registered for gate 2021 go test series through [email protected] I cannot login through that account nor reset the password. I made payment on 31st dec. and received payment successful message. Plz help.
You should have access now.
Hi I have mailed the details, I dont have access yet, after payment for test series
You should have it now.
sir, how to access MOCK test, as all subject and mix test are available in exam section(gate overflow tests), but to attempt mock?
Hello Sir, i just subscribed for GO test series, but there is no link for full length test. I actually subscribed to attempt full length test. :(. Please help.
Full-length tests will be added soon.
Yes, it'll be up late tonight or early morning tomorrow. A few more fixes needed.
Thank you sir for the quick update. :)
Hi! Just purchased the GO test series, is there anything else that i have to do or can i take the tests now?
Is the full length mock test 2 live?
@Soumya Saurav. Don't take mock on the day itself. Wait for 2-3 days. They will correct mistakes. Last time I took it immediately after it went live and there were many errors. So its good to wait 2-3 days
@s1mple0 yes that is understandable, but the mock test 2 was supposed to unlock on 4th Jan, and today is 9th Jan, so i was wondering what's up with the delay.
Mock2 will be up by Monday. Schedule is updated slightly to finish all the mock tests by January 31. If more people are doing well as in Mock 1, we might add another mock by February 7 -- live only for a day just to give a real feel for GATE.
Thanks for all the hard work, I am really enjoying the tests!
You are welcome. Very pleased to see the performance of test takers too.
Hi, just curious if there are any updates regarding the mock 2.
Hi, could you please update us about the Mock Tests ?
It will be live soon.
sir ,it's already 17th
Mock 2 are live now.

Sir how do I download my test report after attempting the test?? Normally I download the test report right after attempting the test. I attempted the graph theory topic test but I forgot to download the test report and closed it accidentally. Now there is no option to download it.


Click on "Result" at top right corner of your scores..

No such button on my dashboard

hover mouse over "Taken <Date>" (or anywhere in that area) , it'll appear
Nope, it doesn't. I have tried everything.
then only someone from the officials can help you..

you have to click on "result", clicking somewhere else(like on date, your score) won't work, and "result" option will only appear after hovering mouse in that area.


I think problem is because of dark theme, it appears, but font is black, so either look very carefully, or switch to light theme..

Yep, the problem was the theme 😅. I can see the button now. Actually I have always used the dark theme on this website.
What are the expected dates for release of Mock 3 & 4 ?
Mock 3 will be added soon.

sir today i have purchased gate overflow test series but i am not able to take test please help me i am sending you the payment details

sir please revert back as soon as possible
Can you check again?
Hey, just for curosity i am asking why suddenly i get access to exam without paying money .. i also get mail..not a loss for me but just want to know how it happened ?

You are the top user in csedoubts for this week , so you got free access for GO Test Series 2021. 

@Arjun Sir Will there be a test on February 7 -- live only for a day?
yes. Live on February 8. Ranks to be published on February 11. (One can take test even after that but without rank).


Arjun Sir, can you help me with this doubt? i have explained everything in the comment section..

Please help me to find out what am i doing wrong here? really need some guidance in this problem.

@Arjun Sir, is the Test on 8th Feb Mock 4 or will Mock 4 be published separately before that ?
Are the questions in mock harder than gate level?

I felt that way :(

@s1mple0 I noticed that even the easier/mechanical questions (like boolean minimization, minimum spanning tree cost calculation) are more time consuming than usual (large expressions, large graphs, etc). I think it's done on purpose - to hustle you and see how you deal with time.

Even with these kinds of questions, I see that people are able to score in the 60s and 70s, so it's definitely doable. I think the trick is to keep moving/keep the pace and do multiple revision passes. Some questions look big, for eg DFA state minimization, but on trying them after the test I noticed that they were actually quite easy and I missed them due to rush.

In actual GATE there will be 4-5 questions you should skip -- so you should get used to identifying them :) I think mock4 is more closer to actual GATE. Mocks 1-3 had very little freebies - which are there in actual GATE for 15-20 marks at least. Actual GATE can be hard or easy -- it being harder is better for those who prepared well. Again 2 sessions are there -- so whether hard or easy, only relative performance matter. If exam is hard -- you should skip hard questions and maximize whatever mark is possible. If exam is easy - you should answer maximum questions without error.

Arjun Sir How normalization will have an affect this time as we have paper in two slots ?

You should not think about normalization now. And the formula remains the same as it does not have a "year" paremeter :)
Dear Sir,
For the last two-three days, there is some problem with the GO platform. Pages are taking a lot of time to load and sometimes it's showing Error 522.
Since these are very important days, just for being on the safer side. Please look into this. I'm very much dependent on this beautiful platform.
I thought I was the only one having this issue. Thanks for bringing it to notice.
Out of context:

mark read feature is not working. I tried all the themes and none worked.

Should be fine now :) @neel19 Have you tried since yesterday?

no, the site is too slow.
yes Sometimes it show error too

@gatecse Sir, sometimes the site takes too much time to load. Please look into this.

Last few days left for GATE and this site being the MOST and ONLY reliable source of PYQ.

Servers and network are following congestion control, I guess. :P
Hi, any updates on the last mock test?
I have removed some time consuming components from site - yes we are having very high usage over last week or so.

Last mock test - will be live by Monday night.
Can you tell what are these "time consuming components" ? Just curious. Thanks.
You can just see which all are removed since yesterday :) It is actually a performance bug -- need to fix that and reactivate.

When we buy plugins we usually check only the functionality. Only when tested on a high load scenario performance issue can be noticed.
Arjun sir, will the test on 8th feb be live for the whole day? I mean can we give the test on 8th at any time of the day and we will get the ranks? If not then what period of time will it be live?
It'll be live from tomorrow morning 6am until Wednesday evening 11:59pm for ranking purpose.
Arjun sir, if possible please jumble 1 and 2 mark questions in Technical section, as recently completed non CS papers were given in that way, so it will be helpful.
Yes, we'll have jumble option for all tests in GO soon.
@gatecse I have purchased the test series for my pgee prep....When will I get access to the tests? right now I am getting redirected to the test info page.
@arjun, @gatecse sir i need the test series, is it still valid, please help me out.
Was never thinking about subscribing for this test series for PGEE exam. Anyway tests wont be removed until May 15 as updated in the post. Those who subscribe should automatically get access if they are using GO email ID. Or else can mail to [email protected]