India, Jan. 25 -- Days after the 25-year-old son of a serving assistant commissioner of police went missing in Haryana, the Delhi Police have begun investigating the matter, officers aware of the case said on Thursday.

Investigators said Lakshya Chauhan - a practicing lawyer who is the son of ACP Yashpal Singh (ops, outer north) - left his home in Mahindra Park near Adarsh Nagar in northwest Delhi with two people to attend a wedding in Bhiwani, Haryana on Monday, but has been missing since, with his mobile switched off.

Subsequently, ACP Singh filed a missing person's report at the Samaypur Badli police station on Tuesday night. One of the people Chauhan left with - a court accountant - is also untraceable, the investigators said, addin...