The redesign of warships showcased at DefExpo focuses more on stealth, possibly at the expense of systems like the AK-630 CIWS. In my opinion, since these ships can strike targets from 500-800 km away, sacrificing a bit of stealth for one or two CIWS systems would be a fair trade-off.
It looks like the ships are equipped with 16 VLSRSAM cells, which should be sufficient, especially since they aren't likely to be deployed on the frontlines. Their role could include patrolling the Bay of Bengal or blockading Pakistan from a distance of 800 km, or even hunting down enemy merchant fleets.
That said, ships of this size typically have a combat endurance of only about 10 days. That's why I hope we've developed fast turnaround bases in places like the Andaman & Nicobar Islands and Lakshadweep to extend their operational range.