According to the police, the incident occurred around 10 a.m. in Mathura Gate area of the town, some 150 km from Jaipur.
"Six of the deceased were female labourers, aged between 20 and 30 years, while the children were aged about two years. The labourers belonged to Madhya Pradesh and Bihar. The kids were daughters of two of the victims," said a police officer.
He said about a dozen labourers were working in the basement area, while the children were playing nearby. When the building collapsed, they were buried under the rubble.
"We rushed the victims to hospital where doctors declared them brought dead. Six other labourers, trapped under the debris, were rescued," said the officer.