"His statement was recorded before the court today and after consulting doctors, we'll take him back to Gorakhpur," he said outside a court here.
"I could not meet the girl so far, as she is very critical and in ICU (intensive care unit). But I will try to meet her," he said.
"We are thankful to Delhi police that they solved the case in 24 hours and put the culprits behind bars," he said.
The 23-year-old woman, gang-raped by half-a-dozen men in a moving bus in New Delhi on Sunday night, is now battling for life in a hospital.
The men tortured and raped her and then dumped her on the road. Her male friend was also thrashed and thrown out of the bus along with her.
The couple had boarded the bus at Munirka to go to Dwarka after watching a film at a multiplex.
The lawyer said his son, who has an engineering degree, was living in the national capital for four years to prepare for the civil services examinations.