Volcanic eruptions in Iceland disrupted air traffic in Europe badly as ash is sporadically blown above the continent’s busiest airports.Flights between India and the UK, North America and some European cities for have been cancelled in the wake of volcanic ash hanging over airspace. Going by the latest advisory from British Air Navigation Service Provider NATS and its counterpart Euro control, Air India, Jet Airways and Kingfisher Airlines have cancelled flights on17th April to and from London, Paris, Brussels, Chicago, Frankfurt, Toronto, and New York. These include Air India's long-haul non-stop flights from Delhi and Mumbai to New York and vice versa, which fly through the affected airspace on the Trans-Atlantic route. The flights from the USA to Europe and India have also been delayed indefinitely. AIR correspondent spoke to passengers on the Air India flight that took off from Washington to Delhi was halted at New York and it is still not clear when it will take off. Due to cancellation and rescheduling of flights, parking bays at Mumbai and Delhi airports have got congested as at least 17 large long-haul planes of Indian and foreign carriers are parked there. Two of the aircraft are also parked on a taxiway in Mumbai.At least 20 European countries shut down all or most of their airspace, although restrictions were gradually lifted in Sweden, Ireland and Norway. Europe's busiest airports, including Heathrow, Frankfurt and Charles de Gaulle, have been affected by the closures. Thousands of passengers stranded in the different airports in the continent. Disruption has affected hundreds of thousands of travellers since Wednesday when the Eyjafjallajokull volcano began erupting for the second time in a month. Iceland lies on the Mid-Atlantic Ridge, the highly volatile boundary between the Eurasian and North American continental plates.