The Indian Air force is the 4th largest Air Force in the world witha first line plane strength of over 1000 aircraft. By first line aircraft we mean aircraft that are used for combat an dlogistic support. The IAF has a saunctioned strenght of 45 squadrons.
The Air Force organization at the operational level starts with the squadron. This is the basic unit for operations and is normally commanded by a wing commander. A squadron may have a complement of 16-18 planes with 6 in reserve. This is a configuration of a fighter squadron, buta transport squadron will have about 6-10aircraft. The first transport squadron of the IAF equipped with the DC-3 had 10 aircraft and was commissioned in 1946.
Each squadron is further sub divided into flights of 4-6 aircraft. Each flight is headed bya flight commander who will control all aspects of flyingand make the flying plan as well. A squadron will have a engineering complement as well with technical personnel and an Squadron Engineering officer. It is the job of the tecnical staff to keep the serviceability rate of teh squadron high. Less than 90 % serviceability is not acceptable.
All squadrons are based at an airbase, which is called a Wing. A fighter Wing may have 3/4 squadrons based. The squadrons are centrally controlled by the wing , which is headed by an Air Commodore or a group Captain. The Wing is the administratoive unit and has a Chief Admin Offcer and a Chief Technical Officer. It also has a full fledged medical division.
The basic organization to fight a air war is thus the squadron based ata Wing. Their role cannot be minimized.