T'puram: The supporters of the trade unions' two-day nationwide strike attacked the Treasury branch of State Bank Of India in the capital city on Wednesday. The protesters barged into the managers's cabin at 10.30 am and damaged computers and other electronic devices. Prior to the strike, SBI informed that their branches were likely to be operational during the two-day general strike. As most of the SBI staff did not support the strike, the branch was working yesterday.