The explosion in Bombay’s beauty salon sisters has killed more than 30 people, including six children, police said.
The explosion occurred in a crowded market at around 6pm local time (18:00 GMT) in the city’s Jhajpur area.
A police official said at least six people were injured in the blast.
“We have confirmed that at least 30 people have died, including at least three children,” police spokesperson Raghunandan said.
“The death toll will rise as we do not know how many people are still unaccounted for.”
The blast happened at a crowded street, with shoppers crowding around.
Witnesses said they saw the explosion.
“A woman was inside the shop and we heard the blast,” said one shopper who declined to be named.
“I went inside and saw a woman lying on the ground with her face up on the pavement, bleeding from her head,” he added.
Another witness, who did not want to be identified, said: “The explosion happened at around 5pm and people were already fleeing.
They started running to the exit.
Everyone is running. “
The market is packed.
Everyone is running.
There are children running with their mothers in the streets.”
A police officer told The Associated Press that police have launched a probe into the blast at the Sisters Beauty Salon in Jhajipur.
“It is still being conducted.
We are yet to find out how many of the victims died in the explosion,” he said.
Jhanipur police have been unable to confirm whether the explosion was linked to a terror attack.
“As we have no information, we cannot confirm that this is a terror incident,” police officer Anuja Joshi said.
A witness said the blast took place at a busy intersection in the heart of the busy shopping district, about 50km (30 miles) from the city centre.
A man who identified himself as Sohrab said: ‘The explosion took place right in front of my shop.
I heard a huge bang.
I turned around and saw blood everywhere.
There were bodies all over the place.’
A woman who did say she was in the salon when the blast occurred told the BBC she was there when the explosion happened.
“My brother was in there and he was killed.
He was not even hurt,” she said.
Police have been trying to trace the remains of the women who died in Jhinpur, where the blast happened.
The city has witnessed numerous attacks on businesses in recent months.
In November, a bomb killed five people and injured more than 50 others in a shopping centre in the Indian capital.
In August, a suicide bomber killed seven people and wounded 30 others in the bustling capital.
Police said on Monday that they have arrested three people for the deadly attack, and have released CCTV footage from inside the shopping centre.