Chandigarh: Boxer Ram Singh has been detained in Fatehgarh Sahab over the Rs 130 crore heroin haul in Mohali. Olympian Vijender Singh, too, is under police scrutiny after smuggler Anup Singh Kahlon named them as clients. Sixteen kilograms of heroin was recovered from a Zirakpur flat and 10 kilograms from a car parked outside the house. The police also recovered another car which belonged to Vijender's wife but was being used by Ram Singh.