I might have replied this before also. IA has 67 Armored Regiments, PA has 46 Armored Regiments.
For both Armies to have any success in the domain of armored warfare, its necessary to have excellent Logistics supply line of spares, ammunition and fuel. After that, are the reserves (Replacements for Destroyed MBT). Then is the mechanism of deployment, how are the armored forces deployed in all kinds of terrain.
PA's AZ, AK, T-80 UD and T-85 are capable to take on any IA MBT, be it T-90 or Arjun I/II or T-72. The T-59's used by PA deployed in Infantry Divisions and even though they will give direct firepower to infantry during an offensive, they will depend upon Infantry to protect them. T-59's are being phased out in any case. India gets advantage in the desert due to massive size of its Armored/Mechanized forces. Both armies will be fielding MBTs where their breakthroughs can be exploited- weakly defended positions.
MBTs operating alone are cannot bring success. In mechanized forces, IA has around 48 mechanized battalions, PA has far lesser. BMP-2 has better firepower than M-113/Talha series. PA holds an advantage in SP Artillery, while IA is catching up with Korean K-9 but has lesser numbers. In AD, both forces are on par with each other, PA should go for Pantsir if its available.
T-90 has tremendous fire power. It has seen combat in Syria, urban and open environments. IA regularly conducts exercises with T-90 in the desert regions. Its armor and protection systems are adequate for its generation- there is ERA, layered armor and news of active protection like SHTORA on it. The biggest advantage is its weight, its lighter than Modern western MBTs. Armored combat is about reach - the distance that can be covered in minimal time. MBT is not expected to stand like a fixed bunker and fight, MBT is expected to cover distance and make contact with the enemy. Issue with IA T-90s is that they are deployed sparsely in the country, few armored formations are near the border, rest reside well inside. Transporting T-90 shouldn't be an issue though- be it rail or road. There is always news of T-72 being upgraded in protection systems and night vision. If T-90 and T-72 engines don't give up, don't require extensive maintenance during an offensive and the Field workshops can provide timely repairs, then expect them to be threat on the battlefield. I mentioned that since we have been seeing posts of T-90 issues, most of which have been rectified and also issues from time to time, like the exploding barrel case in recent past. Rest assured, PA's ATGM teams will be hunting IA's T-90 and T-72 MBTs. ATGM is the most capable weapon against MBTs.
There are 3 in Ladakh, expect another 6 -10 in case of war with China.
This is
@Dazzler department. He is up to date on such information.