Assertion: In Ashokan Inscriptions, virtually the same message engraved is everywhere – from the present-day North West Frontier Provinces of Pakistan, to Andhra Pradesh, Orissa and Uttarakhand in India.
Reason: Magadha empire had a uniform administrative system across the empire.

The Assertion is correct but the Reason is incorrect.

The Mauryan Empire was characterized by five major political centers - the capital Pataliputra and the provincial centers of Taxila, Ujjayini, Tosali, and Suvarnagiri. As evident from the inscriptions of Asoka, the same message was engraved across these regions, spanning from present-day North West Frontier Provinces of Pakistan to Andhra Pradesh, Orissa, and Uttarakhand in India. The question arises - could such a vast empire have functioned under a uniform administrative system?

Historians have increasingly realized that this was unlikely due to the diverse nature of the regions encompassed by the empire. The topography of Afghanistan significantly contrasted with the coastal plains of Orissa, making it challenging to maintain uniformity in administration.