The proposal was mooted by the Arvind Kejriwal government after two boys, aged 16 and 17, were accused of raping a two- and-a-half-year-old girl last week in west Delhi's Nihal Vihar.
"This is totally unacceptable. This is against our global commitment to child rights. Reducing the age is not a solution.
"Even if you reduce the age to 15 and then a 14 year-old commits a similar crime, would you again reduce the age?" asked Centre for Social Research Director Ranjana Kumari.
According to Sanjay Gupta, Director of Chetna NGO, there are several unattended issues concerning children which needed to be looked into. He said studies should be done to understand crimes by juveniles.
"This is not a new debate. We need to do homework on why such incidents are happening in society. There are several unattended issues of children which need looking into instead of just reducing the age of juveniles.