The number of dead in Monday's collision between a CNG-run state transport bus and a chemical tanker in Anand district rose to 29 on Tuesday, police said in Ahmedabad.
A total of 29 bodies have been recovered so far and police have been able to identify six of them. They include four women and drivers of the bus and the tanker.
Fourteen people were injured in the accident. Most of the victims were charred beyond recognition, police said.
The mishap occurred when the bus which was headed towards Vadodara on national highway number eight in Anand district hit the chemical tanker while trying to overtake.
Traffic was restored on the highway on Tuesday morning and the road was cleared of chemical which had spilt from the tanker, officials said.
Three passengers, who received severe burn injuries, were transferred to Civil Hospital in Ahmedabad, while three others were admitted to SSG hospital in Vadodara in a serious condition.
Seven others were admitted in the Karamsad hospital, officials said.