By that argument, India didn't exist before 1947 either.
The Indus valley civillization predominantly grew distinctively from the others in India.
You can't just say that Pakistanis started off in 1947. The struggle for Pakistan started in the 1930s, the Muslim league was formed in 1906, Tipu Sultan dies in battle, Bahadur Shah Zafar was deposed/exhiled, the british arrived, Bulley Shah, Waris Shah, Shah Hussein, the Mughal Era, The Lodhi era, the arrival of Mohammad Bin Qasim... The civillization of mohenjedaro, Taxilla, the Kashmiri Jesus, Alexander the Great, Buddhism, Hinduism, cave men...
You'll take all of this in your own account?
Don't steal from our history, go get your own. Or at least be ethical and give proper citations
. If anything the geographical area of present day India owes some of its history to Pakistan, not the other way round.
You guys have your own little chronology.