i know he did a gud&a brave thing by thinking to expose not only ritu but the entire network behind ritu.but from yesterdays episode it was clearly visible that people who r helping ritu r quite smart and intelligent and they will get the info of every singlething of Indianarmy and the countries confidential info.
and raj did a nice thing by taking that decission.but if he exposes her in the starting only i dont think then there will be this much prob.bcoz now ritu will create huge trouble for raj and she becomes careful and there is a chance to destroy the proofs which will prove that she is the spy.and the senior officer of raj also knows that ritu is the spy may be he will help to raj but there r so many officials and other then him.and i think one of the most imp official is helping and guiding the entire team.
and we know rajs intention and his mission also includes to prove naveen as innocent then he can proof it now to the entire officials bcoz when raj was listening to ritu when she was speaking to the personX he had those recorded tapes in which she herself agreed that they had played a gamble with naveen.