Is it possible to install Rocket Launchers like Pinaka on Arjun Chassis?

Tanks and its chassis are Maintenance Intensive, Maintenance is expensive and time consuming.

Trucks OTOH are easy to maintain.

Logistics is everything. The question itself is pointless.

BTW in theory, anything can be mounted on the Arjun chassis.
 
What's the use??
You are not going to use it any time even when it's conventional equilibrium favoured by all of us with the pakistanis
 
Arjun is way too heavy for such a role..
Plus tank and MLRS have entirely different roles.
Tank leads the ground offensive, basically shielding the soldiers and acting like a moving fortress.
MLRS is never at the front. It attacks large enemy territory from behind the frontline and doesn't need as much armour as a thank.