"I truly believe he has been doing good work in jail... it's a load off my chest and I feel at peace with myself," Sabrina Lall told NDTV. "His conviction was closure for me," she added, wishing to "let go of the baggage" and move on.
Manu Sharma avoided the law for nearly seven years; his acquittal by a lower court triggered mass protests and public outrage. As the case was reopened in the Delhi High Court, Manu Sharma was sentenced to life in prison. He has spent 12 years in Delhi's Tihar jail.
Sabrina said she had heard from "common friends" that he has been doing good work in jail.
The 49-year-old has conveyed the sentiment in a handwritten letter to Tihar jail, which asked for her view on Manu Sharma's release -- something that jail officials claim they do in high-profile cases where the prisoner has displayed good conduct.
Her stunning change of heart may or may not help Manu Sharma as forgiveness of a victim's relative is not a factor in a decision on clemency.
For now, Manu Sharma has been moved to an "open jail". The 41-year-old is allowed to leave the prison every day for work and return in the evening.
Manu Sharma, or Siddharth Vashishta, supposedly works with a non-profit in his name, set up for the rehabilitation of prisoners and their children.
Alleged special treatment to him in jail often made news.
Manu Sharma was granted parole again in 2011 for the wedding of his younger brother. Then in 2013, he appeared for his Master's degree exams.
"I have lost my parents, sister... There comes a time when you want to let go. I was holding on to a lot of baggage and resentment for years. When you lose family members, you have to live with anger and resentment; and I have lived that way for years," said Sabrina Lall.