The sole Marshal of the Indian Air Force (IAF) Arjan Singh passed away following cardiac arrest in New Delhi. He was 98. He was known for shaping IAF in its early years as well as during some of its most difficult junctures. In 2002, on the occasion of Republic Day, he was granted honorary rank of Marshal, highest military rank attainable, which before him only two Army chiefs, K M Carriappa and Sam Manekshaw, had achieved.