a) Is there an assumption in your arguments that the m2000Cs will be upgraded to 2000-5 standard?The M2000 with the current upgrade makes it an extremely advanced aircraft. It's actually the most useful jet for short wars.
It carries hardware specific to some missions that other aircraft cannot carry out properly.
120 Mig-21s are leaving by 2024-25. They are already well past their shelf lives. Rafale won't help. We need a single engine jet like the LCA, Gripen, F-16 or M2000. LCAs will take time, post 2025. Gripen/F-16 are not going to happen. Second-hand M2000 are the fastest. Those 13 new jets alone can cover an entire sector all on their own, like the LoC.
We will be in a very uncomfortable position between the end of 2023 and the end of 2027. That's how long it will take us to get 3 new squadrons of LCA. So every new squadron of M2000 buys us an extra year.
b) are you happy that India is planning to use discarded m2000Cs to guard LOC. Even though they can not fire latest MICA?