India, Nov. 7 -- Operations at Delhi's Indira Gandhi International airport were hit on Friday morning with over 150 flight departures being delayed due to technical snag in the Air Traffic Control (ATC) system.

Follow live updates on the delays at Delhi's IGI airport here.

IGI airport is India's busiest airport that handles over 1,500 flight movements daily. According to flight tracking website Flightradar24, 513 flights were delayed on Thursday alone and 171 delayed since morning.

Following the delays, Airports Authority of India (AAI) said the delays were caused by in the Automatic Message Switching System (AMSS), which supports Air Traffic Control data. "Controllers are processing flight plans manually, leading to some delays. Techn...