A different take on the question:
K: Kareena goes to the mall
P: Parineeti goes to the shopping mall
R: It is raining
Premise: $K \wedge P \rightarrow R$
The contrapositive of the premise is: ⌉R -> ⌉K V ⌉P
If it is not raining then Kareena does not go to the mall or Parineeti does not go to the mall.