With President Ram Nath Kovind reportedly rejecting Tamil Nadu government's plea to release seven Rajiv Gandhi assassination convicts, the mother of one of them has demanded "mercy killing" of her son.

Arputhammal, the mother of A G Perarivalan, recalled the recent assertion by the Tamil Nadu government that it was for the release of the convicts including her son. The seven convicts -- Murugan, Perarivalan, Santhan, Jayakumar, Robert Payas, Ravichandran and Nalini have been in jail for over 20 years now.