Additional District and Sessions Judge Amit Kumar Sirohi also sentenced Gupta's associate Ashok Kumar to 10 years' rigorous imprisonment in the case. Ashok was held guilty of being Gupta's accomplice in the crime.
However, Pravin Kumar, the owner of the resort where the crime took place on April 19, 2008, was acquitted by court.
The duo were convicted yesterday after being found guilty of taking the girl to Rajpur Resort on the pretext of getting her a job in the secretariat and then gangraping her after offering her a drink laced with sedatives, Public Prosecutor GC Sharma said.