Dushman (released in 1998) - A great movie directed by Tanuja Chandra, and starring Kajol, Sanjay Dutt, and Ashutosh Rana

For some time now, the concept of villains in Hindi Movies has undergone a transformation. With the depiction of the angry young man by Amitabh Bachchan who acts as a rebel, and then the villain played by Shahrukh Khan in the 3 movies he did on a trop (Baazigar, Darr and Anjaam), a villain came to be a seen as a person who became a villain due to circumstances, and that there were shades of grey (rather than a pure Black and White) in the depiction of a villain. And then came this movie which showcased a pure villain, who had no real reasons that could give a reason as to why they became a villain; just pure lust that could turn a person into capable of killing. The movie was the debut movie of director Tanuja Chandra, and gave her a good reputation. The movie had music by Uttam Singh, with an incredible sad song by Jasjit Singh (Chithi Na Koi Sandesh).
The movie had some good performances by Kajol (in a double role), Sanjay Dutt (as a blind major), and Ashutosh Rana as the cold blooded killer who can kill without mercy and who can create the total sense of fear in Kajol.



The movie shows the life of twin sisters, Sonia and Naina Sehgal (both played by Kajol). Sonia is more of an extrovert, and is in a relationship with Jas Arora (with both of them committed to marry each other); Naina is more of the introvert - and both of them are deeply in love with each other. And then there is the postman, Gokul, who rapes and kills without mercy and whom the police is hunting. And then the unthinkable happens, with Gokul finding Sonia alone at home when he comes to deliver something, and then he does rape and kill her. This is a horrible tragedy for the family, and they are not able to take this loss.
Naina wants to find who the killer is, and is soon very suspicious of Gokul, and even gets the police to question him. However, Gokul is able to use a social worker to get the police to get off his case and is again free. There is also a nurse who is in love with Gokul, but when she gets inconvenient, he even bumps her off in a forest type of scenario. In the meantime, Naina has come in touch with a blind major (war hero), Suraj Singh Rathod (Sanjay Dutt), who tries to give her courage.
Now, Gokul wants to take revenge on Naina, since he believes that she has got the police on his back and is a threat to him, and this leads to the final confrontation between Naina and Gokul.