Govinda Prasad Mainali wept with joy Wednesday after the Tokyo High Court officially exonerated him of the 1997 murder of a Tokyo woman for which he spent 15 years of a life sentence in a Yokohama prison.

"I felt tears of joy swelling in my eyes. I am extremely happy," Mainali told reporters from the balcony of his Katmandu residence shortly after being informed of the verdict by his supporters in Japan.

"Though I still don't have the details of the verdict, I am happy and I am sharing this happiness with my family members," he said. Dozens of relatives were gathered at Mainali's residence to celebrate his exoneration with him.