Yesterday, the bodies of Laxmi (18) and Nisha (14) were found outside their house in Sector 49.
Today, Kulbhushan, lodged a police complaint against three of his relatives, accusing them of killing his daughters, Sector 49 Police Station In-charge Pankaj Pant said.
According to the post-mortem report, the cause of death was hanging, he added.
Kulbhushan alleged that a few days ago Laxmi had eloped a to Mumbai with the son of one his relatives and returned sometime later, the police official said, that the two were in love.