Sumit's brother-in-law informed the police about the crime. (Representational)
A man named Sumit murdered his wife and three children in Gyan Khand, SP (City) Ghaziabad Shlok Kumar said on Sunday.
Sumit called his brother-in-law to inform about the crime he committed, who then informed the police.
The accused Sumit is currently absconding.
Further details awaited.