In the end, Pakistan will be forced to open its borders to Indian products and services.
I will give an elementary example, excluding all complexities from our family business. We own, operate, and manage other strip malls in the U.S. Within each plaza, there is an anchor business that attracts the most foot traffic, and others get the benefit of it that a customer of that anchor business could stop by or remember them next time. Now imagine that the tenant next to the anchor business refuses clients who do business with the anchor. What would the result be? Lack of food traffic, drop in sales, and the eventuality of shutting down.
Pakistan's economic decisions present two paths: Either becoming the anchor business and the engine of business in the region or aligning with that anchor business to reap the benefits and scale of the economy India enjoys.
Americans, Europeans, and East Asians are all attached to their anchor neighbor because it's cheaper and more cost-effective long-term. In the end, they become your largest trade partner.