Choapha Supatpha also Swargadeo Gadadhar Singha, was the twenty-ninth king of Ahom kingdom, who reigned from 1681 to 1696. He established the rule of Tungkhungia royal house of Ahom kings, whose descendants continued to rule till the climactic end of the Ahom kingdom in 1826. He was earlier known as Gadapani Konwar and was a son of Gobar raja, a descendant of Suhungmung, and who had become king for twenty days. Gadadhar Singha stabilized the Ahom kingdom, which was going through a long decade of political turmoil and instability. This period saw the ruthless power grab of Debera Borbarua and Laluksola Borphukan's abandonment of Guwahati to the hands of Mughals and oppression via Sulikphaa alias Lora Roja.

The Ahom kingdom was a late medieval kingdom in the Brahmaputra Valley that retained its independence for nearly 600 years despite encountering Mughal expansion in Northeast India. Established by Sukaphaa, a Tai prince from Mong Mao, it began as a mong in the upper reaches of the Brahmaputra based on wet rice agriculture. It expanded suddenly under Suhungmung in the 16th century and became multi-ethnic in character, casting a profound effect on the political and social life of the entire Brahmaputra valley. The kingdom became weaker with the rise of the Moamoria rebellion, and subsequently fell to repeated Burmese invasions of Assam. With the defeat of the Burmese after the First Anglo-Burmese War and the Treaty of Yandabo in 1826, control of the kingdom passed into East India Company hands.