According to police, the couple was killed by the girl's mother and her brother, both of whom later surrendered.
The couple, who were neighbours belonging to separate communities living in Kuchesar Road Chaupala village, had got married recently at a court in Ghaziabad, police said.
However, when their family members learnt of the matter, they objected to the wedlock and approached the local panchayat yesterday, which said that the girl and boy should stay with their respective families and not as husband and wife.
Police said that based on a complaint by the boy's family, a case has been registered against six persons. The bodies of the couple have been sent for post-mortem.
Police said that tension prevailed in the area following the killings in view of which adequate number of personnel has been posted there to prevent any untoward incidents.
