Prima facie it appears to be a case of personal animosity, the police said.
A man, who had gone to offer prayers at his daughter's grave, was shot dead in a graveyard in New Delhi today, a police official said.
The incident occurred around 3:30pm when the man, identified as Mehfooz, had gone to the graveyard in east Delhi's Welcome area.
"When Mehfooz was offering prayer at the grave of his daughter, a group of three to four unknown criminals started beating him. Later they fired at least half a dozen rounds on Mehfooz and fled the spot," Deputy Commissioner of Police AK Thakur said.
A resident of Welcome, Mr Mehfooz was taken to a nearby hospital where he was declared dead.
"Mehfooz also had a criminal background, as he was earlier involved in murder and attempt to murder cases. Prima facie it appears to be a case of personal animosity. We have registered a case of murder against unknown persons," DCP Thakur added.