Similarly, diesel rates will fall across the country. In case of Delhi, where the VAT on the fuel has been raised from 12.5 per cent to 16.6 per cent, there will be smaller reduction of 50 paise per litre. Petrol in Delhi will cost Rs 66.90 per litre from tomorrow instead of Rs 66.62 at present. A litre of diesel will cost Rs 49.72 per litre as against Rs 50.22 earlier, Indian Oil Corp (IOC), the nation’s largest oil company, said.