Defences against hypersonic cruise missiles should become active on ships by 2030.
But hey, if supercarriers are no longer the future, then delaying the current carrier would give time to decide whether that will be true or not. So it works out either way. All we have to do is look at what the USN plans on doing. They are currently studying the viability of a supercarrier fleet for a post-2030 world. It's possible that instead of 100-110kT carriers, they would rather go in for 75-80kT carriers, which suits perfectly well for us, which is what I'm suggesting.
Nevertheless, even if carriers are no longer important after 2030 or 2040, all major navies will still retain some carriers since their ability for force projection will still be unmatched. So 3 carriers, allowing 24/7 presence at sea, will still be important for India.
Anyway, the fact is if you want to control oceans, you need carriers. So carriers are still going to be relevant even after 2050. Only the future size of the carriers are suspect, and 80kT is a sweetspot for our needs. The French are also going for an 80kT carrier as well.
What we need are 3 aircraft carriers of 20,000 to 30,000T carrying drones and control aircraft. There is a need to re-look at what a CBG does and its composition going forward.