well, yes ansh raped nandini who was HIS WIFE then.
so its called a MARITAL RAPE and in india NOT recognised as a crime ( mostly wives face it in india, and how many husbands get shot) in india ( ia m not saying marital rape is good, just saying its not something for which a person can be killed), and ansh did this since all his attempts to woo nadnini failed and he suspected nandini is still seeing karan and having extra marital illicit affair.yes he was involved in drug business and when vishal knew it he had him shot.
and when tulsi kiled him(Ansh) was HE WAS FORCEFULLY TAKING NANDINDI WITH HIM, not KILLING HER OR ANYTHING FOR INFORMATION, he was tryign to take her with him and TULSI COULD HAVE VERY WELL CALLED POLICE WHEN SHE CHASED AFTER HIM FOR HOURS AND GAVE LECTURES in stead of murdering him.i just dont get why she takes law into her hand.