Explanation:

Sukhrungphaa or Rudra Singha, was a Tungkhungia king of the Ahom kingdom under whom the kingdom reached its zenith of power and glory. Rudra Singha, known as Lai before he became the king, was the son of the previous Ahom king Gadadhar Singha. An illiterate (probably dyslexic), he is best known for building a coalition of rulers in the region and raising a vast composite army against the Mughal Empire. He died on the eve of his march west from Guwahati. His father had to escape persecution by the previous Ahom king and his mother, Joymoti Konwari, was killed in royal custody. He established his capital at Rangpur.