India raises fuel export duties amid US-Israeli war on Iran India has increased export duties on petrol, diesel and aviation fuel, one day after raising domestic fuel prices for the first time since the US-Israeli war on Iran began on 28 February. The government set the export duty on petrol at three rupees per litre, while diesel exports will face a levy of 16.5 rupees per litre. Aviation fuel exports will be taxed at 16 rupees per litre.