I have never quite understood this. Indian Army has hardly operated wheeled APC/IFVs. Even today there is no hearburn over lack of wheeled units.
The few I can think of have served in very limited numbers and niche roles:
1. BRDM: ATGM and recce (i think).
2. Skot APC
Every other army seems to operate at least a few. I think the closest success a wheeled APC got in the army is in the form of Casspir and its OFB cousins.
The Kestral is going to be very useful for amphibious ops and the North/NE. The tracked FICV will be more suited for the Western sector.
Look around the world, all modern armies have a mix of wheeled and tracked IFVs, the IA is lagging behind badly in this regard.
+ I heard something rather interesting regarding the Kestral; apparently the IA had looked very hard at the US army's "Stryker Brigade combat team: concept (remember all that news of India getting the Stryker 6-7 years back?) and perhaps this is a concept the IA are looking to apply with the Kestral. Note, TATA have already stated there are over a dozen configurations for the Kestral (mortar carrier, C&C, ambulance, recovery vehicle etc etc). Again, the main use for this concept would be in the North and NE.