The incident occurred in NorthEast Delhi's Bhajanpura area.
Sumit Chaudhary alias Prem, the victim, was sitting outside his house in Gamri Extension late when three-four came and he got involved in a spat with them.
The men then stabbed him with a knife and attacked him on the face, neck, chest and abdomen more than 21 times.
Prem was taken to a hospital where he was declared brought-dead.
Police said the victim was accused in an attempted murder case and he was out on bail.