New Delhi: The Delhi Police Wednesday arrested Rohit Shekhar Tiwari's wife Apoorva for allegedly killing him last week, said a senior police officer. The officer said the couple apparently did not have a happy marriage and had frequent fights. Rohit Shekhar was allegedly smothered to death on April 16.

Apoorva was being questioned from Sunday last in connection with the killing. Discrepancies were found in her statements which led police to suspect her involvement.