When Rahul is given 50 lakhs by the police to hand to the kidnapper, the amount should have been 20 lakhs instead. A few scenes before we see the police catching Shalini's brother who had actually demanded the 50 lakhs. So, that would leave the police with the phone call (by Rakhee) the source of the real kidnapper. And Rakhee had actually demanded 20 lakhs, not 50.