Correct Answer: (d) Chhath Puja
Solution:Chhath worship is the most important regional festival of Bihar. It is also called the mega festival of Bihar. It is celebrated on the sixth day of ‘Kartika Shukla Paksha’ i.e., six days after a Deepawali. Bisu is an ancient festival of Kerala. It marks the first day of the new year of Malayalam calendar. Vinayak Chaturthi is the festival celebrated as the the occasion of the birth date of Lord Ganesha on the fourth day of Bhadrapada Shukla Paksha. It is the main festival of Maharashtra.