gunman fired a single shot through the front window of Indian restaurant in Harris Park

Up to 40 people inside a busy Indian restaurant in Sydney’s west were “extremely lucky” not to be injured when a gunman fired a single shot through the front window, police say.

The gunman, dressed in a blue tracksuit, was seen running from Billu’s Indian Eatery on Wigram Street in Harris Park in the moments after the shooting, which occurred just before 9pm on Tuesday

The fleeing gunman is believed to have nearly knocked over a woman at a pedestrian crossing on Wigram Street, and police are now hoping to speak to that woman in the hope that she may be able to help identify the offender.

Police said between 30 and 40 customers and staff were inside the restaurant when the single shot was fired through the front window. Remarkably, the bullet missed everyone inside and hit a shelf, police said.

Some diners did not realise immediately that a shot had been fired, and thought a car may have backfired on the street outside.

“It was extremely lucky that no one was injured,” a NSW Police spokeswoman said.

Detectives are understood to be investigating if the shooting was a targeted attack, and are interviewing staff and customers who were inside the restaurant at the time.

It is the second time this year a gunman on foot has fired shots in the vicinity of the restaurant.

In April, police closed Wigram Street when a man fired eight shots into the air on a Saturday afternoon, before fleeing.

A witness to that shooting, Ramkrishna Gudipudi, told Fairfax Media at the time that he was eating his lunch when the shooting occurred.

“My wife and I were eating at Billu’s Indian restaurant when this gunman appeared out of the middle of nowhere and fired away,” Mr Gudipudi said.

“After he fled we walked over and saw eight bullets scattered all over the ground.

“You don’t expect to be eating lunch and have bullets fired around you.”

On Tuesday night, detectives closed a section Wigram Street while they searched for the gunman, while forensic police examined the restaurant.

Police are appealing for anyone who saw the offender to come forward, in particular the woman who was nearly knocked to the ground at the pedestrian crossing.

Police described her as being Indian or sub-Continental in appearance, aged between 25 and 30, and she was wearing a pink top.

Anyone with information has been urged to contact Crime Stoppers on 1800 333 000 or visit the Crime Stoppers online reporting page.