He, however, pretended to be a well-wisher before Ashish's family," she added.
"Avadhesh also lied to Ashish's family and said he works with the Central Bureau of Investigation (CBI).
When Ashish replied that Karan asked him not to visit his house, Avadhesh smothered him to death, wrapped the body and placed it in a cupboard.
"Avadhesh told police Ashish's parents used to abuse him in his absence and did not like his visits to their house," Deputy Commissioner of Police Aslam Khan told IANS.
He stayed in a neighbouring house near the victim -- seven-year-old Ashish -- in Swaroop Nagar in west Delhi.