Pakistan and India are the exact same apart from religion. Languages (apart from Pashtuns and Balochis, who only constitue less than 20% of your population and can still speak Urdu/Hindi), heritage, and values are definitely the same. There are some cultural differences because of religion, but things such as wedding ceremonies, food, and the daily way of life in both these countries are nearly identical.
If someone were to ask you what country is most similar to yours, what would you say? There's no country more identical to you than India. People would laugh/be very baffled if you said any other.
Just because your two countries are in conflict doesn't mean you're entirely dissimilar to each other. Culturally and linguistically, North Korea is most similar to South Korea. Same goes with China and Taiwan. I don't know why so many people are in denial here.