Nisha Sikand (Gauri Tonk nee Yadev). Nisha was married to Kunal (Yash Tonk), one of Ramola's sons (as it happens they also married in real life). She was tricked in to confronting Shaina by Ramola for Shaina's alleged involvement in Nisha's husbands death. She fought with Shaina for possession of the gun but was killed by Ramola during the fight and ended up another one of her many victims.
Miscellaneous. Here are a few more ladies from the series, not all gun toting baddies but most being allies of Ramola.
COMING SOON: Ramola....