air india flight 182 was a passenger plane which, on june 23, 1985, exploded from a bomb that was placed on the plane. the aircraft was going between montréal-mirabel international airport, montreal, quebec, and new delhi, india. it was an air india boeing 747-237b, registration vt-efo. the bombing was called the largest mass murder in modern canadian history, and the deadliest act of air terrorism before 9/11.