The correct answer is: a) Ahom Kingdom.
The Buranjis are a unique form of historical chronicles that were maintained during the Ahom Kingdom in Assam, India. They are written in the Ahom language and provide a detailed account of the history of the kingdom, from its founding in the 13th century to its fall in the 19th century. The Buranjis are an important source of information about the Ahom Kingdom and its culture.
The Varman Dynasty was a dynasty that ruled over the Kamarupa Kingdom in Assam from the 4th to the 12th centuries. The Pala Dynasty was a dynasty that ruled over Bengal from the 8th to the 12th centuries. The Kachari Kingdom was a kingdom that ruled over parts of Assam and Nagaland from the 13th to the 19th centuries.
The Buranjis are not associated with any of these dynasties.