Shashi Tharoor in The Guardian:
Many modern apologists for British colonial rule in India no longer contest the basic facts of imperial exploitation and plunder, rapacity and loot, which are too deeply documented to be challengeable. Instead they offer a counter-argument: granted, the British took what they could for 200 years, but didn’t they also leave behind a great deal of lasting benefit? In particular, political unity and democracy, the rule of law, railways, English education, even tea and cricket?
Indeed, the British like to point out that the very idea of “India” as one entity (now three, but one during the British Raj), instead of multiple warring principalities and statelets, is the incontestable contribution of British imperial rule.
Unfortunately for this argument, throughout the history of the subcontinent, there has existed an impulsion for unity. The idea of India is as old as the Vedas, the earliest Hindu scriptures, which describe “Bharatvarsha” as the land between the Himalayas and the seas. If this “sacred geography” is essentially a Hindu idea, Maulana Azad has written of how Indian Muslims, whether Pathans from the north-west or Tamils from the south, were all seen by Arabs as “Hindis”, hailing from a recognisable civilisational space. Numerous Indian rulers had sought to unite the territory, with the Mauryas (three centuries before Christ) and the Mughals coming the closest by ruling almost 90% of the subcontinent. Had the British not completed the job, there is little doubt that some Indian ruler, emulating his forerunners, would have done so.
More here.