In her unity in diversity India has all the important religions of the world and become a land of religious festivals. So, do West Bengal. Not a single month passes here that does not celebrate one or the other festival of a certain religious community. Bengal is indeed a land of thirteen Parvanas (festivals) in twelve months.
Religious festivals are in the nature of rituals and as a part of religious practice. They serve to foster and tone up the sagging morals and spiritual faith. The moral tone of these festivals purifies and expands one's mind; the festivals often act as a source of entertainment and pleasure. There are almost everywhere cultural functions and exhibitions of physical culture, along with spiritual uplift. These functions serve the cause of state progress as well. Religious Festivals of Bengal try to remove the cares and worries of life. The large crowds that assemble in the festival area break the barriers of caste and creed and develop unity and tolerance among the various religious sects and communities.
Lion's share of such festivals falls to the lot of the Hindus. Their biggest festivals are the Durga Puja and Kali Puja in the autumn, Shivaratri, Charak and Manasa Puja. Besides there are so many small occasions. The Muslims have their greatest festival of ID after the Holy Fast of Ramjan, Bakr-Id, Fateha Duaz Daham, Muhharam are their other festivals. The Christians observe Christmas with great grandeur and processions of devotees go round the locality singing the praise of the Lord Jesus!