By searching Zeno by weight and diameter, found a match.
It's a half paisa from the Nawabs of Arkat (Arcot), KM 22, AH 1207-1209, AD 1793-1795.
https://www.zeno.ru/showphoto.php?photo=167149
The coin was struck on a different position on the die from the coin pictured in Zeno, but the three converging lines are distinctive.