Right now, Pakistan is in a very bad condition, financially. Their government is running on IMF aid. So India will win this war pretty easily. My only worry is that, big nations like US or China shouldn't join the war. It will then become a world war which will eventually bring down the economy of the world.
Actually India isn't in a better economic position either. The years of bad decisions by Modi has created a massive gap between the 0.5% ultra wealthy elite and the 99.5% of the population most of whom keep getting poorer. And when the government claims to have eliminated absolute poverty, when you look at major cities like Calcutta/Kolkata you find countless people who don't even have anything to eat due to extreme poverty.
As for China and US, unfortunately they are both already deep into this conflict. Specially US that they even begged Yemen for a ceasefire so that they could secure their Red Sea route when they want to dump weapons into India to fight a proxy war with China!
Iran is also a success country but it does not have such a strong population which is why it is not so difficult and easy to destroy Iran because it is an Islamic country behind which Islamic country will support it. Because of which it will not be consider so weak. At that time when this war happen Iran army was not strong which is why they were not so victory and could not achieve victory and were invincible in the war. But they did not give up and have made themselve better than the best.