Indian air force role in 1971 war

Is there any one who can give me the information about role of the Indian air force in the Battle of Boyra which was held on 3 December 1971? Will you please tell me about the role of the IAF? Also tell me what are the reasons behind the Battle of Boyra which was held on 3 December 1971? Give me the information as soon as possible?

Can you provide me the details of the Aircraft - Multi-Role Fighters and Strike Aircraft – of IAF (Indian Air Force)?

[sumit]

The Indian Air Force has aircraft and equipment of Russian (erstwhile Soviet Union), British, French, Israeli, US and Indian origins. HAL produces some of the Russian and British aircraft in India under licence.

Multi-Role Fighters and Strike Aircraft

Sukhoi Su-30MKI:
The IAF's primary air superiority fighter with the additional capability to conduct air-ground (strike) missions is Sukhoi Su-30MKI.
The IAF have placed an order for a total of 272 Su-30MKIs of which 242 are in service as of January 2016.

Mikoyan MiG-29:
The Mikoyan MiG-29 known as Baaz (Hindi for Hawk) is a dedicated air superiority fighter and constitutes a second line of defence after the Sukhoi Su-30MKI.
69 MiG-29s are in service, all of which have been recently upgraded to the MiG-29UPG standard.

Dassault Mirage 2000:
The Dassault Mirage 2000, known as Vajra in Indian service, is the primary multirole fighter, the IAF currently operates 49 Mirage 2000Hs and 8 Mirage 2000 TH all of which are currently being upgraded to the Mirage 2000-5 MK2 standard with Indian specific modifications and 2 Mirage 2000-5 MK2 are in service as of March 2015.

HAL Tejas:
The MiG-21s are planned to be replaced by the indigenously built HAL Tejas.
The first Tejas IAF unit, No. 45 Squadron IAF Flying Daggers was formed on 1 July 2016 with 2 aircraft. Initially being stationed at Bangalore, 1st squadron will be placed at its home base at Sulur, Tamil Nadu.
The Tejas will comprise 40 aircraft of the MK1 variant and 83 of the MK1A variant. The latter will have AESA radar, improved EW fit and internal changes for ease of maintenance.

SEPECAT Jaguar:
The SEPECAT Jaguar known as Shamsher serves as the IAF's primary ground attack force. The IAF currently operates 139 Jaguars.
The first batch of DARIN-1 Jaguars are now going through a DARIN-3 upgrade being equipped with EL/M-2052 AESA radars, and an improved jamming suite plus new avionics.

Mikoyan MiG-27:
The Mikoyan MiG-27 known as Bahadur (Hindi for Valiant) serves as the IAF's primary ground attack force. The IAF currently operates over 85 MiG-27s.
The type will be phased out soon to account for increasing serviceability concerns and 40 of them have been upgraded for improved strike missions, including laser designation and with self-protection jamming

Mikoyan-Gurevich MiG-21:
The Mikoyan-Gurevich MiG-21 serves as an Interceptor aircraft in the IAF. The IAF have phased out most of its MiG-21s and plans to keep only 125 that have been upgraded to MiG-21 Bison standard. These aircraft will be phased out between 2014 and 2017.