The incident took place at the Rajpath-Janpath crossing near National Museum at around 9:30 am and the victims were on way to Akshardham when the accident took place.
Army and air force contingents have been rushed in to assist in relief and rescue operations.
Hours after three suspected Islamic State group suicide bombers targeted the international terminal of Istanbul's Ataturk airport, killing at least 36 people and wounding many others, Rediff.com brings you some of the deadliest attacks at airports, which have left several dead and hundreds injured.