Ghaziabad: The convicted couple who killed their own daughter Aarushi Talwar were assigned new roles by the Jail authorities on Wednesday. They are serving life term imprisonment in Dasna jail.According to the jail authorities, Rajesh Talwar, a dentist, will assist prison’s medical team while Nupur Talwar will teach female inmates and their children in the jail.The Talwar couple were arrested for committing the double murder of their own daughter Aarushi and their servant Hemraj in 2008.Jail Superintendent Vireshraj Sharma said that they started work from Wednesday and would be on work from 10 AM to 5 PM every day except Sunday.Mean while Khum Kala,wife of Hemraj(servant) expressed happiness over the sentencing of the Talwars.”Today I feel I have won a huge battle. I am now hopeful that I can begin a new life,” she said.