IAF isn't ever happy with anything desi, tomorrow if someone offers them a similar 160km range AAM from a foreign vendor, they will procure it in a heartbeat if the decision was left with them.
The issue with this pov is that there is definite instance that go against this. Why?
1. Weapon system design process is very exhaustive because it is not only the hardware, rather the entire package of hardware, software, detection method, communication, engagement, replenishment, long term storage, sustenance everything. This is why it is called weapon system complex, a multi domain & multi dimensional operation involving trained manpower right from manufacturing stage to end user. Every aspect of it need well trained people, every single missile has its own log book to keep storage & use recorded, every MLS needs high level maintenance prior & post of use; every loading crane needs to be in fit condition because you are handling articles that are highly explosive in nature with live warhead.
2. So such a complex operation involving expert manpower from technician to soldier to logistics to maintenance can not be built in a single effort. Every weapon system thus go through many iteration mk1 mk2 etc because at every stage you are going to get issues with so many factors like lru replacement, something not working as it meant to be, mechanical electrical or component level failure, glitch in software, non availability of good training manual. spare not available, parts imported got stuck in delay, need alternative source.
This is just for the main missile , but the same issues exist for supporting system too. Better carrier vehicle, better replenishment vehicle for ease of operation, radar improvement, improved warhead, comm system, infusion of new gen tech, integration with central command structure all can be named. Each element is vital to the entire operation. All this is developed over period of 30,40, 50 years and kept in operational use for another 20-30 years of life or more. Along with this development cycle, core knowledge & industrial expertise also builds up that a country needs to carry on & persist with.
Case in point, Akash missiles protect IAF bases as part of layered AD grid. Once you have layered system, you need multiple option under a single chain of command. So why it is not discarded? because it offers protection , cost benefit is good & indigenous manufactured & serviced over entire life cycle then refurbishment is done for life extension.
We as a country did not make many (read as ANY) indigenous weapons that was meant for conventional use. Due to lack of strong industrial bases and demand, plus the restricted defence sector, meant for us the development of a truly complex weapon system like Akash took a long time to learn and develop, then get mature enough for operational use & now it is getting iterative development. This much time taken is mandatory for a successful project. We have to accept it. USA Uk France all went through this cycle of learning experience & they persisted with it.
Now for your point of BVR, imagine Astra for Akash. Making a bvr missile is a different ball game where the threshold has shifted every decade, very few countries have made successful operational BVR systems. So Astra itself has to be given the same long development cycle to mature its technology level that was afforded to Akash. Since Astra is our first made weapon system for long range engagement which needed development of long range comm datalink seeker algorithm power supply miniaturised avionics everything, its evolution process also need time only in this case DRDO have much more experience in development so the development cycle is comparatively shorter.
Today we have Astra training simulator , digital checkout system, launcher , long storage method, training manual, on hand expertise for integration with different radars & jets, testing validation all developed in house. This means as a weapon complex system design process our knowledge level from conceptual stage to dev cycle, testing & proving then manufacturing & supply to user all have gone thru a revolutionary process. It has matured well that from a sub system builder we have progressed to full system integration level.
So this part so far is related to development.
Question is what IAF would have done for the time taken to establish this Astra system as fully proven & reliable? IAF could not stand still so import cases did proceed and different missile systems get inducted which gets even more complex due to diverse jets IAF use. There was no domestic system available so reliance over foreign procurement is still persisting. Astra itself is only just getting into the groove, outside of Su30 no complete integration on other jets or large inventory available yet. So it would take another 10-15 years for the entire process involving many domestic companies under lead integrator.
Akash got inducted in 2007 and today in 2025 it protects our skies successfully. Astra would do the same over a far longer time. Thereby both the points that
a. IAF needed imported solutions of all types
b. IAF also procured & deployed indigenous systems
are valid at the same time. Due to budget & operational use as multi option based strategy you always need multiple inventory options to add flexibility. Issue is you rely on export controlled weapon systems that would not be as good as what the original system that is used by the country of origin. Every export controlled weapon system is watered down version. Then you got geopolitics involved esp with USA, a lead weapon manufacturer.
This validates the logic behind multi layered approach. In case of a BVR, our option is somewhat limited compared to Akash like ad system. We rely on russian missiles because other options are both costly & not allowed to be integrated on russian platforms in some cases. So if tomorrow someone offered a new BVR at affordable cost & integration with jets we use without much additional baggage, what is wrong with buying the same?
We know there are always some caveat.
a. That bvr missile would be costly so enough numbers can not be bought sadly.
b. Sustaining those missiles during entire shelf life with spares etc will cost huge.
c. integration with radar system of various jets is a complex process anyway
d. We sometimes make it even more complex by asking for tot or source codes
e. Very small but vital use opportunities over the whole service life
f. Each missile system you can draw some unique feature use experience and learn from it, mode of operation digitally can vary.
So all these basic reasons are faced by the user and they are aware of the risk yet they go with buying because it helps in case of operational use. Now whether something promised and yet undelivered or unavailable, that is separate issue. As a buyer IAF tried to make provisions for many situations, what they call wargaming or something. Some arrived some did not, it does not reflect their lack of trying. Rather it shows they are much more professional & open minded. The fact that a mature desi system is not available at the right time of need is not their fault or concern entirely.
Another thing, range of a BVR never defines its utility. Neither does the cowardly rapid firing of BVR missiles from distance then running away like Pak do every single time defines a BVR fight. Its a throw dirt to wall & see what sticks method that is highly unprofessional.
Air to air engagement between jets rely on various other factors. Read about it in the below well explained thread.