The 62-year-old real estate tycoon was shot dead by two unidentified men in his farmhouse. Bhardwaj’s wife was questioned because police wanted to know if she had a grudge against her husband since she was living separately in Dwarka with younger son Nitesh for several months, said a police officer close to the probe.

The officer said South Delhi special staff and local police also questioned Nitesh (32), since he had filed a police case against his father some months ago and in turn, Bhardwaj had lodgeda complaint against his son. Police want to know the reason behind the cross-complaints.