Bihu, the most important festival of Assam, is associated with:

Harvest and the changing seasons
Religious rituals
Victory in battle
Community gatherings

The correct answer is: a) Harvest and the changing seasons

Bihu is a major Assamese festival celebrated in the months of Bohag (April–May), Kati (October–November), and Magh (January–February). It is a time for thanksgiving to the gods for a bountiful harvest and for praying for a prosperous year ahead. The festival is also associated with the changing seasons, as it marks the beginning of the spring, the harvest season, and the winter.

Bihu is celebrated with great pomp and show. People wear traditional Assamese attire, dance and sing folk songs, and feast on special dishes. The festival is also a time for family reunions and social gatherings.

Here is a brief description of each option:

  • Option (b), Religious rituals: Bihu is not associated with any particular religious ritual. It is a secular festival that is celebrated by people of all faiths.
  • Option (c), Victory in battle: Bihu is not associated with any victory in battle. It is a festival of peace and harmony.
  • Option (d), Community gatherings: Bihu is a time for community gatherings. People from all walks of life come together to celebrate the festival.