But one thing which made me think, she said " tumhe chupana padega jab tak ham kamyab nahi ho jaate"
As in kis cheez mein kamyab nahi ho jaate, is there a bigger plan? So is she planning a murder strategy or something even more complicated?
Plus I find it really weird, if Samay was saved in Maya's cell, then why did his name not display when Vandana was using it. I get the feeling that Maya purposely kept her phone like that without any password so that VM could use it, and on the safe side deleted Samay's name.
Also she said, " ab waqt aa gaya hai tumhara pyaar saabit karneka " something like that. She obviously meant Samay, so she is really counting on him to do what she has planned.
And the dialogue of the day, which was also highlighted , "agar sab theek nahi hua na, toh main pata nahi kya karungi " there is so much one can infer from these lines. There is some big planning going on, either from Maya's side or from Samay's side, which is not restricted to mere marriage.