Not even MIRV can deter India because India has the capability to neutralize missiles in their boost phase anywhere in Pakistan, along with air superiority and extensive on-ground and satellite intelligence to locate and destroy Pakistani nuclear installations. These systems will only improve as India's economy grows and research and development advance. That's why I maintain that Pakistan can never have a credible nuclear deterrence against India.
The only way to deliver nuclear weapons onto Indian territory is through a submarine-launched nuclear missile, and that too only if the submarine is nuclear-powered, has long-range capabilities, and is stealthy enough to evade detection by the Indian Navy’s submarine hunters.
Lol.....