You cannot argue against the guy constructively so you are literally begging to be helped out?
Same way a Leopard 2A+7 is different from a Leopard 2.....
It’s okay brother, not everyone has the time to learn about such things, I respect their side of the argument too, they have been respectful and are genuinely Curios, it is good to return that
If mango rounds on T72/90 can't penitrate AK even without ERA then why would India use it on tanks??
In all India Pakistan wars tanks have always been a dominating platforms then how can they buy such useless rounds which cannot penitrate AK even without ERA but AK can penitrate Indian tanks at will???
Apart from this AL Zarrar if I am not mistaken is an upgrade of very old tank T59 / T69 or T62.... How can it be more powerful than upgraded T72 and latest T90??
Also if possible can you brief on what is CITV and APS system on VT4....
CITV means commander’s independent thermal Veiwer. It means not only tank gunner but commander has his own thermal imagine sights, this is a major upgrade as in a tank the commander is the one who spots targets and Thermal sights make it much much easier to spot targets. In most tanks commander has to spot these targets by using gunners thermals, which can be an issue since gunner needs them to aim as well. VT4 is the only in the sub continent to have this currently, which means it has the highest first-shot probability of any tank here. Arjun MK1A is supposed to have such a system when it enters service, which is very commendable too, that’s why I said MK1A is technologically very decent, but it has poor armor, mobility and firepower.
APS is active protection system, it’s the system that shoots down incoming projectiles before they hit the tank, currently VT4 is the only one in the sub continent with such a system. Plus the one on VT4 is a hard-kill APS (hard kill means it physically shoots projectiles at incoming projectiles to shoot them down) which are generally better than Soft kill systems (which try to confuse the enemy tank with electronic systems to project the tank). India is developing its own APS for T90 and Arjun, but it will still take a significant amount of years for it to be operational.
To answer the second part of your post; I believe india initially purchased Mango rounds as an interim measure, As the current ammo it had was even older and it has not been able to make it’s own APFSDS. But it seems the local APFSDS project is still far off and India has bought more Mango to make up for it. It is still an upgrade from what is being used before it, but not enough of one. I question why india did not buy newer Russian Svinets series of shells, as these are some of the best in the world. I hope it was not incompetency on Your MoDs part.
Lastly, I did not say Al-Zarrar is superior to T90. T90 has much much higher protection than Al-Zarrar and much better mobility, it also likely has better technology. Even with next gen ERA and base armor upgrades, Al-Zarrar is a small tank, Russian armor is of very high quality. Where AZ will have the edge is firepower, since it has much better ammunition, this isn’t a fault with the T90S, since it is able to fire better ammunition, I’m genuinely puzzled why india bought such old ammunition. Al-Zarrar also has the same gunner thermals as T90S, but T90S has better commanders sights and sensors. Mango rounds can probably penetrate AZ anywhere on the hull and turret, while AZ can likely only penetrate T90S on hull if it gets to fire first (which in this case T90S will have the advantage). Older rounds might still have issue penetrating AZ.
Compared to T72, Al-Zarrar is closer, Indian modernized T72 again has better mobility and technology, similar thermals and in this case, maybe even better ERA, since Az is a small tank where ERA cannot be used to its full advantage. However only half the Indian T72 fleet is modernized, that half is superior to AZ and closer to Pakistani Type 85 modernized tanks. But in this Case AZ again has the advantage in firepower, simply due to better ammo. Both these tanks can likely penetrate each other anywhere on turret and hull. (I do not know wether non-modernized Indian T72s can fire mango, as their FCS might not allow it)
when it comes to protection, apart from VT4 I believe T90S still has the some of the best protection in the sub continent, its armor is likely better or at least comparable to AK/AK-1 on most surfaces, especially the turret, due to its much higher ERA coverage, Al-Khalid has better ERA but it doesn’t cover much on the turret, on the hull I would say AK has better protection since the ERA covers more. Indian T90S has some ERA coverage even on the hull sides, so that part is better protected than AK, as AK only has armored side skirts and not ERA on hull side.
VT4 not only has very advanced base armor, ERA and high coverage but APS means nothing will hit it in the first place, granted Pakistan does not have APS in service just yet on its VT4s but China does sell APS with it that Pakistan has tested and will likely buy it soon.
The part where I mention that Indian T90S cannot penetrate an AK is solely down to the old ammo used, (without ERA this would only apply to the turret, Hull is vulnerable, with ERA both will be protected, but tanks still have spots that are uncovered with ERA like lower plates, however in actual tank combat, nobody aims for weak spots, only for center mass) if india gets better ammo for its T90S this will quickly change, as T90 can fire all modern ammo. AK and AZ (not AK-1) have reached their limit in regards to ammo, unless upgraded further , since they cannot fire any longer ammo, but what they have already is very good.
AK can penetrate T90S on the hull, likely even with ERA, but not on the turret, as the armor and ERA coverage there is high. Again this comes down to the older ERA used on T90, something that can be upgraded. As Indian modernize T72 and T90 use same ammo this applies to both (but T72 has inferior protection). Similarly since all Pakistani tanks use the same ammo this applies to all of them.
(But AZ and type 85 have inferior protection)
You can see the issue here is not Indian tanks, but their upgradeable parts like ammo and ERA. Both of which india is working to upgrade, (which is the good news on your side as these upgrades are not difficult), but is somehow significantly behind the curve as compared to Pakistan. Pakistani AZs and Type-85s despite being modernizations of older tanks due to having modern ammo and ERA are still relevant, while india has a much bigger number of modern tanks (T90 and modernized T72) when compared to Pakistan, they have not been given proper ammo and ERA. Which is the balancing factor here.
Keep in mind that while numbers are in Indian favor (Pakistan has about 1000 3rd Gen tanks, adding about a hundred a year to that with its VT4 and AK1 orders, with about 1000 modernized older types, and a few hundred obsolete Type 69/59. While india has 1200 T90 plus these new orders of T90 and Arjun MK1A as 3rd Gen, (Arjun is 3rd Gen in tech but its firepower is poor due to its gun) along with 1000 modernized T72s and a further 700ish near-obsolete T72s) geography and the China factor would mean this advantage is not as big as on paper. But advantage is still advantage.