What is the speciality of MiG-21 bison and Mirage-2000?

The Mirage-2000 aircraft along with the MiG-21 also played an important role in the Kargil War.
What is the speciality of MiG-21 bison and Mirage-2000?
The MiG-21 Bison is the most advanced fighter aircraft of the modern-armed MiG-21 series. It is used as an interceptor. Interceptor fighter jets are designed to attack enemy aircraft, especially bombers and reconnaissance planes. The Indian Air Force first inducted MiG-21 aircraft into its fleet in 1960. Since the Kargil War, the Indian Air Force has been replacing the same advanced MiG-21 bison by removing old MiG-21 aircraft from its fleet. Bison is also called balalaca . Nato forces also call it fishbeds. The MiG-21 bison is powered by a large search and track radar that operates a radar-controlled missile and leads the radar guided missiles. It uses BVR technology that makes normal but lethal fighter aircraft worthy of combat capability against missiles that disappear from the eyes. These fighter jets have an electronic and advanced cockpit type. The MiG-21 bison is similar to Brazil's relatively new F-5M fibre plane. The MiG-21 bison is a supersonic fighter jet aircraft which …