The Rai Dynasty (c. 489–690 CE) was a dynasty of Sindh, now in present-day Pakistan. The influence of the Rai Empire extended from Kashmir in the east, Makran and Debal port (Karachi) in the west, Surat port in the south, and the Kandahar, Sistan, Suleyman, Ferdan and Kikanan hills in the north. It ruled an area of over 600,000 square miles (1,553,993 km2).
The Emperors of this dynasty were great patrons of Hinduism and Buddhism. They established a formidable temple of Shiva in present-day Sukkur, Pakistan, derived from original Shankar, close to their capital in Al-ror. This is consistent with the historical accounts from the times of Emperor Ashoka and Harsha because Indian monarchs never sponsored a state religion and usually patronized more than one faith.The Dynasty ruled for a period of 202 years.
Read more about Rai Dynasty: Rule of Rai Sahasi II, End of The Rai Dynasty, Chronology of Rai Rulers of Sindh, Sources