[1][2] The primary book source for the association of the town of Muree with Mary is found in the German estoric writer Holger Kersten's Jesus lebte in Indien (1982).
This belief is an addition to the teachings of the Ahmaddiyya founder Mirza Ghulam Ahmad's claims, based on his reading of various Hindu and Islamic sources that Jesus survived the crucifixion, came to India and died and is buried in Kashmir.
Combining local oral and written accounts of one Yuz Asaf with the Acts of Thomas, Ahmad claimed that Jesus (whom he identified with Yuz Asaf), Thomas the Apostle (held to be Jesus' twin brother), and their mother Mary travelled to India, with Mary dying en route from Taxila at Muree and being buried at Pindi Point there.
[1][2] The name "Mai Mari da Ashtan" means, literally, the "resting place of Mother Mary", and the site was venerated by Hindus, Muslims, and Christians locally; so much that when the British tried to have the tomb demolished in 1916, to stop people visiting it (because at the time it was next to a defence post built in 1898), public protest caused them to not proceed with the demolition.
[1] The tomb itself was renovated in the 1950s through the efforts of an Ahmaddiyya leader Khwaja Nazir Ahmad, author of Jesus in Heaven and Earth.