A war between India and Pakistan would have a widespread impact across the entirety of Pakistan, while there will be no effects on India or maybe some limited to border areas but, even those would be short-lived. For perspective, the 1971 war lasted only 12 days.
In the Russia-Ukraine war, the impact is being felt across all of Ukraine, while Russia remains largely unaffected. Similarly, during the Israel-Palestine conflict, the entire nation of Israel initially felt the effects due to its small geographical size. However, after the first few days, the conflict has been largely confined to Palestinian territories, with minimal impact on Israel.