Correct Answer: Magh Bihu

Solution : The correct option is Magh Bihu .

The festival celebrated when the annual harvest takes place in Assam is known as "Bihu." There are three Bihu festivals celebrated at different times of the year in Assam, and the one associated with the harvest is called "Bhogali Bihu" or "Magh Bihu." Bhogali Bihu is typically celebrated in mid-January, marking the end of the harvesting season and the beginning of the Assamese month of Magh.