Columbus wanted to search for Maharashtra? ..and did Vasco da Gama search for Gomantaka/Goa?
Ashoka's accounts are as factually proven as the Roman or Greek accounts. Historically there is no dispute whatsoever. No historian disputes that.
Plus there were extensive Gupta and Maratha periods - which are usually not known to most Pakistanis when the nation was united.
As for the name - yes 'India' came to exist in the people's imagination only in the late 19th century and as a geopolitical entity from 1947 as Dominion of India.
But there were also elaborate descriptions of Aryavarta, Bharata, Mahabharata ... not only in myths but also in documents written, signed, and preserved by visitors, traders, scientists, poets - mentioning that. There was a consciousness regarding what was Bharat and what was not.
Quite distinct to that of 'Pakistan'.
India as a geographic entity is very different than India as a Nation-State.
Unfortunately quite a few of your compatriots have a tendency of believing that just because the names are same thus to speak of one is to speak of the other.
A historical and geographical India is to the Republic of India what the Africas and the Americas are to the United States of America and South Africa respectively; we don't see either South Africans or Americans claiming some sort of bragging rights over the entire African or North American continent as some of your compatriots do as if the citizens living on the side of the border have some sort of a first movers advantage.
Ancient India has nothing to do with the Republic of India anymore than it has anything to do with Pakistan, Sri Lanka, Bhuttan, Bangladesh and perhaps even Burma, as a continuation of these things.
Its like the Bolivians claiming that just because their country is named after Simon Bolivar they somehow have the prime rights over him to the exclusion or in preference to the rest of Latin America.
So far as the Gupta, the Mughal, the British or the Marhatta Empires are concerned; their administrative unity was forged at the tip of a sword or down the barrel of a gun not because of some natural evolution of the Indian Subcontinent fast approaching the semblance of a Nation-State (even if one were to historically contextualize it).
And the romanticized notions of an Ancient Bharat are great when it comes to mythology but mythology usually makes for a poor substitute of historical evidence and ancient documentation by traders etc. doesn't substantiate the presence of a India as a cohesive unit or anything remotely similar anymore than Columbus running into Native Americans or the First Nations substantiates the existence of the Americas being inhabited by Native Americans as some sort of a disjointed country of different nations and tribes.
ON TOPIC: Even an idiot can understand that the existence of Pakistan is not the issue here anymore than the exploits of Serbia which fall in the share of Montenegro belonging to the newly created state of Montenegro is !