"It was a despicable and disgusting act," Khurshid said on the sidelines of a conference on e-court here.
He praised the 17-year-old girl, who "bravely fought off her attackers."
However, he refused to answer a question whether there was a need for making the law regarding molestation stringent.
Police had said that some girls and boys, apparently known to each other, had entered a bar in Guwahati on Monday night, where they subsequently had a brawl and were forced outside by the establishment
