Ahmedabad/ Surat, July 31 : The Gujarat Government and police believe that the planting of bombs in the city was impossible without the support of the locals.

A government official said: "Though the conspiracy has a pan-national angle, it could not have been possible without the local support."

Surat Police Commissioner R M S Brar said: "The terrorist operations of such massive scale is not possible without local support. The planting of bombs, the selection of places, transportation of explosive materials was impossible without their support."

The Surat Crime Branch carried out massive combing operations this morning.

"In the combing operations we had questioned 280 people and made preventive arrest of 90 people. We have found some leads in the case but we will not declare about it yet," he added.

The police have also got the details from records of the toll booth on the roads between Ahmedabad and Vadodara that the car used in the blast at city civil hospital had made several trips between the two cities last month.

The car was stolen from Navi Mumbai, it bore a fake number plate and had passed through the toll gates between the two cities for five-six times in the last one month. (ANI)