When did Ahoms enter Assam valley ?

The correct answer is In the 13 th century A.D. Key Points The Ahom Kingdom was established by Sukaphaa , a Tai prince from Mong Mao (present-day Yunnan, China and parts of Myanmar ). He entered the Brahmaputra Valley in 1228 A.D. after crossing the Patkai Mountains , which marks the beginning of the 13 th century A.D. The year 1228 A.D. is historically recognized as the date when the Ahoms settled in the region, initially establishing themselves near the Dihing River . They successfully conquered and unified various local tribes like the Chutiyas , Kacharis , and others to build a powerful kingdom. The 11 th , 12 th , and 14 th centuries are incorrect as they do not align with the historical records of Sukaphaa's migration and arrival. Additional Information The Ahom dynasty ruled the region for nearly 600 years (≈ 1228−1826 ). The first permanent capital of the kingdom was established at Charaideo in 1253 A.D. The Ahoms are well-known for successfully resisting the expansion of the Mughal Empire into Assam , most famously during the Battle of Saraighat in 1671 , led by the legendary general Lachit Borphukan . The kingdom's independence came to an end with the Treaty of Yandabo in 1826 , following the Burmese invasions and the subsequent intervention by the British East India Company . The Ahoms maintained detailed historical chronicles called Buranjis , which provide an extensive record of their reign and the history of Assam .