Japanese , still dont speak english/ either Russian/German.
Did anyone rule Europe to unite them? now they speak as european Union. They got united because of US Threat/to be stronger gobal voice/ fall of USSR - to make bipolar world again.
India is always united my Hindu culture and practises.
We would have not lost punjab and bengal - if we has not ruled my British.
May be we would have been much stronger - Including region from present day afghan to Malaysia into one nations - bigger than china.