now that they have shown that the spy is a girl, i think it will probably be Dr Shalini, because Ritu is way too obvious.
But i also thought it could be Pooja, firstly because she was there in the infirmary, she might have been pretending to sleep. Secondly the marks on her hand. Thirdly the entire thing of joining the army because she was looking for her bf is very weird.
Though i feel it might be Dr Shalini. What do you think?
(though i still cant help hoping that it is Ritu, otherwise once the misunderstandings are clear there will be nothing that stop her from getting Rajveer. :(( )