The boy was allegedly kidnapped for a Rs 40 lakh ransom from Burari area when he was playing outside his house, according to police.
His family had lodged a complaint when they failed to find him.
A case of missing was lodged in this regard at Burari police station. A PCR call was received late tonight regarding a minor boy lying unconscious.
He was spotted by a passer-by who informed the police.
The boy was rushed to a nearby hospital, where he was declared brought dead.
Two persons have been detained in this regard, police said adding, the matter is being probed further.