The boy, who shot his mother dead with his father's pistol, tried to mislead police during the investigation by telling a false story
Roy had gone on Facebook live to mock Banerjee's literary award. He is well-known for his contentious social media posts.
"We have overcome history's hesitations and will not allow anyone to veto our choices," he said. For the past two years, India has been at odds with China over a border dispute in Eastern Ladakh.