Explanation: Kullu Dussehra is a significant and vibrant festival celebrated in the Kullu Valley of Himachal Pradesh. It is one of the most popular festivals in the state and is celebrated with great enthusiasm and cultural significance. The festival is unique to the Kullu Valley and is a major tourist attraction, drawing visitors from all over the world.
The festival is celebrated for 7 days, starting from the day after Vijayadashami, which is the last day of the Navratri festival. During this time, deities from various temples across the valley are brought to the Dussehra ground in Kullu town. The deities are placed on beautifully decorated palanquins and taken in a grand procession. The festival is a celebration of the victory of good over evil and is marked by traditional dances, music, and cultural performances.
Kullu Dussehra is not just a religious festival but also a significant cultural event that showcases the rich heritage and traditions of Himachal Pradesh. The festival is a testament to the region's unique cultural identity and is an important part of the state's cultural calendar. It is celebrated with great fervor and is a major tourist attraction, contributing significantly to the state's tourism industry.
In contrast, Bihu is a major festival celebrated in Assam and is not associated with Himachal Pradesh. Diwali, while celebrated in Himachal Pradesh, is a pan-Indian festival and does not hold the same unique cultural significance as Kullu Dussehra. Therefore, Kullu Dussehra is the most popular festival in Himachal Pradesh, making it the correct answer to the question.