New Delhi: After the recent case of fire in a Delhi Transport Corporation (DTC) bus running on a school route, the government has drawn up an elaborate plan to make the entire fleet leakage proof. All buses which have undergone checks will now sport stickers on the front windscreen for easy identification. DTC has, meanwhile, started a special checking of its fleet for fire safety and about 600 buses have already been tested. A meeting on fire in CNG buses was called by the Environmental Pollution Control Authority (EPCA) on Monday.