Atleast three persons including two girls were injured in a blast in a building at Amdavadi pol under Raopura area of the city on Thursday.
Chief fire brigade officer HJ Tapariya told a news agency that the exact cause of the blast was yet to be ascertained as the house in which it occurred did not have any gas cylinder or a pipeline gas connection.
The injured have been shifted to a private hospital for treatment, he said.
Police were investigating the incident.
A forensic lab team also visited the site, he added.
–PTI