Two regiments of any one of these are good enough for a brisk but brief rendezvous in the Rann of Kutch!!!Actually I discussed the same with @Signalian a few days back i.e. an 8X8 with a 120mm gun. So your logic is very sound.
@PanzerKiel & @Signalian Can better explain what PA thinks about light tanks, some examples are listed below:
View attachment 623664
Patria AMV 8x8 showcased with 120mm Leonardo turret
View attachment 623665
Centauro 2 II MGS 120/105 8x8 anti-tank wheeled armoured vehicle
View attachment 623666
Chinese ZTL-11 8x8 amphibious 105mm
View attachment 623667
Japan Type 16
Note: for details of above eqpt, kindly click on their names.