New Delhi: Delhi Police have arrested a man who allegedly kidnapped and murdered his wife's 11-year-old brother whose skull and bones were recovered from Loni in neighbouring Uttar Pradesh.

A complaint was filed by Raju, a resident of Mandoli Extension in northeast Delhi, regarding his missing son at Prashant Vihar police station on May 20.

While the cops were clueless initially, they later zeroed in on the suspect Prashant, 21, who is married to the deceased's sister, said Ajit Kumar Singla, DCP (northeast).

Prashant was nabbed while going to meet a lawyer at Karkardooma court on Thursday, said the officer.

"During interrogation, he admitted his role in kidnapping and murder of the boy and helped police in recovery of the victim's skull, bones, clothes, slippers and a Taviz (talisman) from a forest in Loni (Ghaziabad)," he said.

The accused claimed that his relations with his in-laws were troubled since his marriage in July, 2016. He had lured the victim on the pretext of playing video games and took him to Loni where he murdered him, added the officer.