According to prosecution, in January 1994, the 15-year-old victim was raped for several days by Kunwar Sen and Hawaldwar Singh in Kadarchowk town.
Based on the evidences, Special Judge (SC/ST) Harihar Prasad sentenced Hawaldar Singh to life imprisonment, they said.
The court also imposed a fine of Rs 2,500 on the accused.
Another accused Kunwar Sen died during the course of trail, they said.