KOLKATA: Taxis went off roads in the city on Friday with major taxi unions, including the Left-backed ones, calling for a day-long strike, causing inconvenience to commuters and passengers at railway stations and airport. Long-distance travellers had to face hardships to reach their destinations with no taxis at the Netaji Subhas Chandra Bose International Airport and two major railway stations — Howrah and Sealdah.