In a suspected gang war, a 35-year-old gym owner was shot dead by two bike-borne assailants in the posh neighbourhood of south Delhi's Greater Kailash area, officials in New Delhi said on Friday.
Two persons have been arrested in connection with the incident, they said.
"These two are suspected to have provided logistical support to the shooters. They are being further interrogated by a team of special cell," a senior officer said.
The officer said that four more people were detained and questioned in connection with the case but the main shooter is still on the run.
The police also suspect the involvement of associates of jailed gangsters Lawrence Bishnoi and Hashim Baba in the murder.
The victim, Nadir Shah, who had previous criminal cases against him, including charges of robbery and attempted murder, co-owned a gym in Greater Kailash Part 1.
Shah also owned a business in Dubai and is stated to be known to some of the Delhi police officials.
He is survived by his mother and two brothers. Shah's father hailed from Afghanistan and had shifted to Delhi several years ago.
Sources said that at the time of the incident, some officials from the Delhi Police Special Cell, an anti-terror unit, were also present at the gym, as they had gone to meet an informer.
Shah received three to four bullet in a firing done by a person.
He was talking to someone outside his Sharx Gym when he was shot with multiple bullets at about 10.44 pm, the police said.
A CCTV of the incident surfaced on the social media in which Shah could be seen talking with a person when one of the attackers walked towards him and opened a spree of firing in a close range.
The attacker fled away, as police suspect, on a motorbike on which his associate was waiting for him.
Minutes after the incident, a purported social media post from an account in the name of gangster Rohit Godara took the responsibility of Shah's shooting.
The post stated that "shooting has been instructed by a jailed criminal Sameer Baba because Shah was troubling in their business. Whoever will support our rival and trouble us will be shot like this".
The post also mentioned the names of jailed gangster Lawrence Bishnoi's associates "Rohit Godara, Goly Brar, Gogi gang and Kala Rana gang".
Deputy commissioner of police (south) Ankit Chauhan said that an information was received regarding firing at GK 1, adding one person was injured and taken to the Max Hospital.
The police personnel on reaching the spot found some bullet projectiles and empty cartridges.
On enquiry, it was found that Shah, a resident of CR Park, had suffered bullet injuries, the police said.
"The attackers came on a two-wheeler, fired at him and ran away. He was immediately rushed to the hospital by his friends but was declared brought dead," Chauhan said, adding he had received around five bullets.
The investigations are on from all possible angles, he added.
The police suspect a case of rivalry but did not rule out the possibility of a gang war.