Reshma was found hanging in her cell in jail number 6 this afternoon and was rushed to Deen Dayal Upadhyay hospital, where she was declared brought dead, jail officials said.
This is the second suicide in the high security prison this week, the first being that of prime accused in Delhi gangrape case Ram Singh on Monday.
Reshma was arrested in 2011 in a kidnapping case and since then she was in jail.
The jail had reported a total of 18 deaths including two suicides in 2012.
