Expressing regret over the move, Air India attributed its action to uncontrollable factors and warned that without surcharges, some flights might face cancellation due to unviable costs.
Trump said the war could end "soon" but warned of aggressive action against Iran if it continues the Strait of Hormuz blockade, as Tehran said attacks will continue "as long as necessary".
Oil companies have reportedly imposed an unofficial halt on the delivery of commercial cylinders due to declining stock levels and prioritise on domestic supply.