Similarly did not consider US MPF program vehicles as they're still in development.
Anders & CV90/120 due to 30+T weight restrictions .
Overall the K21-120 is a vehicle that outmatches the Sprut in firepower while being much better protected.
Add in the local production at L&T ,this tank has my vote.
Could be made in India with a JV.
vid of heavy turret
Would add that the #IndianArmy in 2009 had specified a requirement for 300 light tanks 100 tracked & 200 8x8 wheeled with similar specifics.
The thread above focuses only on the tracked units.