The man identified as Ksupsikren was stabbed in his stomach and has been admitted to a hospital in Saket, police said, adding he is out of danger now.
A group of men waylaid the victim when he was returning home from work around 4 AM, they said.
"Prima facie it seems to be a case of robbery. The men tried to snatch his mobile and when he resisted, they stabbed him and fled from the spot," a police official said.
Senior police officials are on the spot and a manhunt has been launched to nab the culprits, police said.
The incident comes two days after two youths from Manipur were allegedly beaten with sticks in Ambedkar Nagar area of south Delhi on Sunday night.
A youth from Arunachal Pradesh recently died after he was allegedly assaulted by some shopkeepers in Lajpat Nagar area. A 14-year-old Manipuri girl was raped in south Delhi's Munirka area last week.