HAL has shown deficiencies in the past related to maintenance also. You need to involve private sector to a much greater extent because you need more qualified people due to competition in the private sector, as well as better funding and better equipment setups, etc. This would have to be done in a way that companies and people are held accountable with regular audits etc. also so that it's not just free money. Of course the government organizations will also have to cooperate initially to get them up to speed.
But the sad truth is the IAF needed the greater numbers of aircraft yesterday, and the token order of MK1A will simply not be enough. So then what are the options? Either you throw 20 to 30 billion dollars down the drain in another import to get a 120 odd aircraft which will require another few years to acquire maintenance knowledge of, and HAL may end up screwing that up also. Or, you accept that the Tejas MK1A may not be a perfect plane but it's good enough, and given its cost to benefit ratio it's a good choice, since it costs less than a 1/4th of what imports will cost you. So you increase the MK1A order by 3 times, rope in the private sector to add additional 3 manufacturing lines to increase the numbers quickly, and also use this as an opportunity to increase private players in maintenance of aircraft, since HAL has been having issues with this, and this will also increase aircraft availability in the IAF in general. Given the limited budget and the delays with everything including MWF (also due to pandemic), IMHO, this is the best option to increase the numbers quickly. In return you get an aircraft with a world class AESA radar, decent AESA based jamming, decent pod based optronics, decent BVR and short range weapons, and a decent engine in large numbers quickly. We need the numbers now given the situation arising at the borders, and we need them without breaking the bank. The solution is in front of us. it's only a question of if we are brave enough to make the decision.
When the MWF comes, it will replace the Mirages, the Jaguars and the Mig-29s along with the older Sukhois in numbers also. The demand will also be there in the future, given evolving threats.