Malayalam beauty Kavya Madhavan is making her comeback in the Malayalam industry and seems to have already signed the movie "Christian Brothers". Now, the buzz is that she has been roped in for the Malayalam movie "Pramaani" though it is not confirmed. Directed by B Unnikrishnan, it stars Mammootty in the lead. Sources indicate that Mammootty plays the role of a corrupt Panchayat Leader in this one. However he has some good human traits which are unearthed by the heroine.