My wife's name when she was younger was Anu (Anamika) Khanna. Her father died when she was very young around 1975, his name was Barkat Ram. His father was Amolak Ram, his grandfather was Amrchand.
Her last name changed alot, but I think Khanna must have been her father's name.
My wife's mother was a child during the India-Pakistan war and was carried across the Pakistan border to India. Eventually they settled in New Delhi.
My wife's mother's name is Sudesh Kumari.
Let me know if this is any connection or similarities to your line. I will try to get more exact info on her last name.
Thank you.