The deceased Shaloni was returning from a friend's place in Kotla Mubarakpur last night when a group of 5-6 men arrived at the spot by car and attacked him.
He was rushed to AIIMS Trauma Centre where he succumbed to his injuries, police said.
"We have registered a case and investigation has been taken up. He was attacked by 5-6 men. There was no provocation from the part of the deceased," Deputy Commissioner of Police (South) B S Jaiswal said.
"We are trying to identify the attackers and the exact sequence of events," he said.
Shaloni lived in Munirka area and was presently unemployed.