According to news agency PTI, investigators said they could not ascertain the number of people killed, soon after they reached the spot after they were alerted by one of the neighbours of the family.
However, as the blaze was put out, they located what was believed to be human remains.
Local media reports said the police were not yet able to ascertain the reason behind the fire and deemed it 'suspicious'.
In a press release, police said they were continuing to investigate the deaths of the three family members and urged anyone with information to come forward.
