A passerby spotted the abandoned baby boy and informed police about it at around 2 pm, they added.
Officials reached the spot and rushed the baby to a nearby hospital, where the condition of the newborn is stated to be stable, a senior police officer said.
The officer said they were looking for the baby's parents in adjoining areas.
Police are scanning through missing complaints related to babies that have been registered in various police stations, he said.
It is also being probed if the child was abandoned by an unwed mother, Singh said.
Hospital records are being checked for details of missing babies, he added.
(With inputs from agencies.)