The police said that Sitlhou was abducted on Wednesday morning while en route his village Shantipur on a scooter from National Highway 2.
The ASI, who was rescued on Wednesday night, was reportedly assaulted by his abductors.
A search is on to nab the kidnappers.
On April 27, two CRPF personnel, including a sub-inspector, were killed while two others were injured after a camp of the paramilitary force was attacked in Bishnupur district.
IANS