Ayyan Atikal Tiruvatikal issued the famous the Terisappalli Copper Plate ( 849 AD ) .
Ayyan Atikal Tiruvatikal is the Governor of Venadu ( Quilon ) under Sthanu Ravi .
Ayyan Atikal Tiruvatikal , the Governor of Venadu ( Quilon ) under Sthanu Ravi , issued the famous the Terisappalli Copper Plate ( 849 AD ) .