The mother of one of the seven convicts in the Rajiv Gandhi assassination case Monday met Tamil Nadu Governor Banwarilal Purohit to seek her son's release following a Supreme Court order and the state cabinet's recommendation. Arputhammal, the mother A G Perarivalan, said she met Purohit at Raj Bhavan here and submitted a petition with some related material, and exuded confidence he will accept her demand.