Karthik was stabbed by his friends following a drunken brawl in front of a hotel late on Monday night, city police commissioner Jyotiprakash Mirji told reporters here.
The victim suffered injuries in the stomach, face and thigh and was rushed to St John's Hospital after the security guard posted at the entrance of the hotel noticed him lying on the road badly injured, Mirji said.
He succumbed to his injuries in the morning, Mirji said.
Three of his friends, who also hail from Tamil Nadu, have been taken into custody for interrogation, Mirji said. A case has been registered.