Pakistan was always a part of the Indian subcontinenet in one form or another, but it was never a part of the MODERN state of India. Some history would do you well... India isnt the sole inheritor of the Indian subcontinent, you were born out of the British empire as was Paksitan. So spare us your Hindu Propaganda bs.
You can play with semantics all you want, but the term Pakistan did not exist earlier whereas the term India did - recall East India Company ???
India has been there for ages - Pakistan was born out of India in 1947.