During Thudhamma's rule of Arakan,
Muhammad Khurram (later Shah Jahan) took control of neighbouring
Mughal Bengal in 1624. Thudamma took advantage of the Bengal crisis by leading a raid into
Bhalwa (Noakhali), where he defeated the local administrator
Mirza Baqi and returned to Arakan with plenty of
war booty. It is known that the king had 10,000 war-boats, 1,500 elephants, and one million infantry which made him a formidable force in the region. In 1623, he captured approximately 30,000 Bengali slaves, which were noted for being strong and healthy, attributed to the abundance of food in Arakan. In May 1624, when Shah Jahan entered Dhaka, an Arakanese embassy arrived to show support for the rebellious prince. The king of Arakan, Sirisudhammaraja, expressed sympathy towards Shah Jahan’s cause. The Arakanese embassy brought gifts worth 100,000 Rupees and received robes of honour and a firman (official decree) confirming the king's territories in return. During his reign, in April 1624, the Dutch began trade relations with the city of Mrauk U. In 1628, the King sent an embassy to the
Siamese court, likely aiming to build military ties against the Burmese. However, his attempt to capture the ports of
Myeik and
Tanintharyi in late 1637 was viewed by Siam as a hostile move. In 1628, the
Laungkrakca (); governor of
Launggyet) rebelled and posed a threat of Thiri Thudhamma's reign. The rebellion was put down and many leading men executed, but this only furthered the importance of future
Laungkrakca. In 1635, a grand coronation ceremony was organized by the King. This event was celebrated with the issue of a coin inscribed only in
Pali, showing his strong Rakhine Buddhist identity. == Death and succession ==