"We have arrested Vivek Singh. We have also recovered the revolver," Additional Commissioner of Police (southeast Delhi) Virender Singh, who had earlier denied reports of the firing, told a news agency.
Singh, who went to Mocha Bar with his wife and sister to look for a purse left behind there on Tuesday, Dec 22 night, fired at the manager when they were told that the staff had not found any wallet there.
"The bullet missed the manager and hit a wooden plank. Vivek fled the place," the Additional Commissioner said.
"As Vivek and his wife waited in their car outside the bar, his sister went inside. She had a heated argument with the bar manager who denied finding the wallet. She went outside and told her brother about the incident," the officer added.
Later, Vivek along with his wife and sister went inside and had a scuffle with the manager. He then pulled out the gun and fired and fled the scene, leaving the women behind, the police officer said.
The police rushed to the spot after the firing, detained the women and questioned them.
The arrest was made in the evening and an attempt to murder case has been filed against the Vivek Singh.