In his Temporal and Spiritual Conquest of Ceylon, Father Queroz records a tradition as 
In course of time, there came some Brahmanes, natives of Guzarata called Arus, who claiming royal descent; and with the favor of Nayque of Madura, they erected a pagoda at Ramancor, whence they began to have trade and friendship with the king of Jaffnapatae, and one of them married a daughter of the king; and finally her descendants became heirs to the Kingdom.

This rendition is fraught with many errors but the basic story line seems to fit the modern consensus.
Father Queroz's time line is also anachronistic.
The Aryacakravarti dynasty came to power long before the ascendancy of the Madurai Nayaks as well as the Brahmins of Rameswaram had established a temple even longer before.
Also the Gujarati origin of the Kings paternal line also in not in conformance with native claims of origin from the city of Varanasi which is in today's Uttar Pradesh not in the historical Gujarat.
In his Temporal and Spiritual Conquest of Ceylon, Father Queroz records a tradition as 
In course of time, there came some Brahmanes, natives of Guzarata called Arus, who claiming royal descent; and with the favor of Nayque of Madura, they erected a pagoda at Ramancor, whence they began to have trade and friendship with the king of Jaffnapatae, and one of them married a daughter of the king; and finally her descendants became heirs to the Kingdom.
This rendition is fraught with many errors but the basic story line seems to fit the modern consensus. Father Queroz's time line is also anachronistic. The Aryacakravarti dynasty came to power long before the ascendancy of the Madurai Nayaks as well as the Brahmins of Rameswaram had established a temple even longer before. Also the Gujarati origin of the Kings paternal line also in not in conformance with native claims of origin from the city of Varanasi which is in today's Uttar Pradesh not in the historical Gujarat.
Aryacakravarti dynasty