Aman Nagpal, who worked as team manager at a call centre in Gurgaon, was staying with his live-in partner at SRS Hillview, a police spokesperson said.
A few days back he had a fight with the woman, who was also his colleague, over some issue following which her parents took her away, he said.
This left Aman mentally disturbed and he took the extreme step, the spokesperson said.
Before committing suicide, Nagpal recorded an audio detailing his troubles and posted the clip on Facebook.
Lal said the body has been sent for a post-mortem in the civil hospital.