Ravinder, who was arrested last week, has so far admitted his involvement in 32 cases of rape and murder of minor girls in Delhi and neighbouring states of UP and Haryana, a senior police officer said.
The investigators said that he was being taken to places in Delhi and other states where he allegedly committed the heinous crimes since 2009.
The 24-year-old accused, a native of Badaun in UP, was arrested by police last week, in connection with rape and murder of a 6-year-old girl in Begumpur area in Outer Delhi.
Delhi Police is mulling over a proposal to form an SIT to investigate and bring out the truth related to the accused, a senior police officer of Delhi Police headquarters said.
He was taken in police custody which will end on July 23, the officer said, adding that in view of his long list of victims we will ask the court to give us more time to interrogate him.