The party workers were seen roaming around with bamboo sticks and vandalizing vehicles around them. The goons badly thrashed the driver, while the man was seen helpless. Earlier on Monday, a group of unidentified persons attacked the New Woodlands Hotel in Mylapore over the ongoing Cauvery row between Karnataka and Tamil Nadu.

Four people have been detained by the Chennai Police in connection with the attack. Karnataka has been under severe unrest since the time Supreme Court ordered the state to release 15,000 cusecs of water every day for the next 10 days.

A bench of Justice Dipak Misra and Justice Uday Umesh Lalit asked the Cauvery Supervisory Committee to look into Tamil Nadu's plea seeking direction to Karnataka to release 35 tmcft of water to make good for that much shortfall in the release of water for three months starting with June 1 to August 30.

While directing the release of 15,000 tmcft of water every day, the bench took note of the impact of non-availability of required water on the summer crops and the plight of farmers. The bench also said that Tamil Nadu in turn would proportionately give water to Puducherry and gave Tamil Nadu three days time to approach the Supervisory Committee with its claim of 35 tmcft of water from Karnataka.