Dev Singh (40) was shot dead by his neighbour Sunil Yadav when he had gone to lodge protest against thrashing of his children last night, SP (City) Maan Singh said today.
He said that Dev's brother Kalyan, Ram Prakash and Om were also assaulted by Sunil and his family members.
An FIR has been lodged against Sunil, his brothers Kamta, Sone Singh, Ram Singh and father Nawab Singh, the SP said.