Several suspects have been detained and scores of people, including family members, questioned in connection with the murder of businessman Deepak Bhardwaj who was gunned down at his Rajokri farmhouse on Tuesday. Mr. Bhardwaj was the richest candidate to have contested the 2009 Lok Sabha elections which he had fought from West Delhi on a Bahujan Samaj Party ticket.

Among those questioned on Thursday were Mr. Bhardwaj’s estranged wife Ramesh Kumari and the couple’s children Nitesh and Hitesh. Ramesh had been living with her two sons in Dwarka.

Investigations so far have indicated that the murder was a result of a conspiracy and the police do not rule out the involvement of family members or others having a property dispute with Mr. Bhardwaj or even his business rivals. A police source described the relation between Mr. Bhardwaj and his wife as an “on and off” one.