Explanation: Kamrupa was an ancient kingdom located in the region of present-day Assam, India. The kingdom was known for its rich cultural and historical significance, and it played a crucial role in the political and social landscape of ancient India. The Saka Era, also known as the Saka calendar, is a historical calendar that was used in ancient India. It is believed to have been established in 78 AD, marking the beginning of a new era in Indian history.
The Saka Era is named after the Saka people, who were a group of Central Asian nomads who migrated to the Indian subcontinent. The Saka Era was adopted by various Indian kingdoms and empires, including the Gupta Empire, and it became a widely used calendar system in ancient India. The commencement of the Saka Era is significant because it marks a new beginning in the historical timeline of India, and it is still used in some parts of India today.
Debesvar was the ruler of Kamrupa during the commencement of the Saka Era. He is recognized as an important historical figure in the region, and his reign is associated with the establishment of the Saka Era. The historical records and inscriptions from the period provide evidence of Debesvar's rule and his connection to the Saka Era. This makes Debesvar the correct answer to the question.
It is important to note that the other options provided in the question are incorrect. Banasur and Naraksur are figures from Hindu mythology and not historical rulers of Kamrupa. Bhagadutta, while a historical figure, was a king of Magadha and not Kamrupa. Therefore, these options do not align with the historical context of the Saka Era and the rulers of Kamrupa.
Understanding the historical context and the significance of the Saka Era is crucial for comprehending the political and social landscape of ancient India. The Saka Era marked a new beginning in the historical timeline of India, and it is closely associated with the rulers of Kamrupa, such as Debesvar. This knowledge is essential for students studying ancient Indian history and the rulers of various kingdoms in the region.