Venerable Uduwela Sumedha Thera who had opposed the opening of a wine store in Wilgamuwa was attacked by a man under the influence of liquor, the Police media unit said.
Police said the monk was attacked while he was travelling in a three-wheeler on his way to the Gangasirigama temple.
The Wilgamuwa and Hettipola residents have condemned the attack and had put up black flags to show their displeasure, the Daily Mirror learns.
The monk was admitted to the Wilgamuwa Hospital.
(Jehan Gunasekara)