"Around 3.15 a.m., a group came to the hotel and damaged glass panels. It seems the group attacked the hotel in protest against Karnataka's attitude in release of Cauvery river water," a police official told reporters.

A hotel employee confirmed the incident, adding that no person was injured in the attack. On Friday, there was shut down in Karnataka protesting the release of Cauvery river water to Tamil Nadu.

Tamil Nadu and Karnataka are locked horns over Cauvery waters. the Supreme Court's had given direction for releasing Cauvery water to Tamil Nadu, a farmer in Mandya on September 6.

Karnataka, in compliance with the top court's direction, on September 7 released Cauvery water to Tamil Nadu.  As soon as the news spread, protesters intensified the agitation.