Pawan Kumar,38,was found dead in his room in Janakpuri on Sunday,with his body hanging from the ceiling fan.
A suicide note held his relationship with his wife Minka as the reason for taking the extreme step.
On the statement of the victims father,Division number 6 police station registered a case of abetment to suicide against his wife Seema and Minka.
The couple had a 12-year-old daughter and a 9 year old son from 14-year-old marriage.
Hans Raj,father of the deceased,said when he returned from the gurdwara on Sunday morning,he found his sons room locked from inside. Through
the window,he saw his body hanging from the fan and informed the police immediately.