The blaze occurred just past midnight in Arpora village in North Goa, a party hub, 25 kilometres from the state capital, Panaji.
Goa's Chief Minister Pramod Sawant said most of the dead were the club's kitchen workers, as well as three to four tourists. Six people were injured and are in stable condition. All the bodies have been recovered.
The fire was caused by a gas cylinder blast and has been extinguished, the Press Trust of India news agency reported, quoting local police.
However, witnesses told the agency that the fire began on the club's first floor, where nearly 100 tourists were on the dance floor. Several rushed to the kitchen below in the chaos and got trapped along with staff.
Fatima Shaikh said the commotion began as flames erupted, according to the news agency. "We rushed out of the club only to see that the entire structure was up in flames," she said.
The nightclub, located along the Arpora River backwaters, had a narrow entry and exit that forced the firefighters to park their tankers about 400 metres away.
Sawant said the club had violated fire safety regulations. The state government ordered an inquiry to determine the exact cause of the fire and responsibility adding that authorities would act against the club management and officials who allowed it to operate despite the violations.
Local village council official Roshan Redkar told the news agency that authorities had earlier issued a demolition notice for the club, which didn't have construction permit from the government. But higher officials rolled back the order, he said.
Prime Minister Narendra Modi, in a social media post, called the fire "deeply saddening" and said he spoke with Sawant.
Modi said the government "is providing all possible assistance" while offering condolences to the victims' families.
The prime minister's office guaranteed that compensation of 200,000 rupees (about $A3356) for the next of kin of those killed in the fire, and 50,000 rupees for those injured
Accidents, particularly involving gas cylinders and electric short circuits, aren't uncommon in India and often result in casualties, underlining the need for authorities to implement stringent safety protocols.
"This is not just an accident; it is a criminal failure of safety and governance," Rahul Gandhi, a top leader of India's main opposition Congress party, wrote in a social media post.
He called for a transparent probe to "fix accountability and ensure such preventable tragedies don't occur again."
The western coastal state of Goa is one of India's most popular tourist destinations, known for its sandy beaches.
with reuters, EFE
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