Chembur cops have booked unknown people for stealing mangalsutra from an Income Tax official's wife when her car was waiting at the traffic signal.

A 57-year-old Income Tax official having a rank of Additional Commissioner in Chennai arrived on December 28 morning with his wife to visit his mother-in-law at Trombay along with his wife. On December 28 morning, the couple arrived at Terminal 2 of Mumbai airport and went to a government guest house.