IPS officer M S Chauhan, who probed the high-profile PDS scam and mysteriously went missing in Arunchal Pradesh's West Kameng district on October 16, was traced in New Delhi today. This was disclosed by IGP (Crime) Arvind Deep.

An IPS officer of 1998 batch of the Union Territory cadre, Chauhan had charge-sheeted 56 persons including former Chief Minister Gegong Apang, five Congress MLAs, two ministers besides several IAS officers and contractors in the PDS scam.