This book has been published keeping in mind the sentiments of millions of Hindus that live across the whole world. The book contains knowledge based on the data contained in various religious books. It is a result of hard work by a number of learned and hardworking people. India is a land of festivals and religious beliefs and all such beliefs and festivals are detailed in this book relating to Hindus. The India characterized by "Unity in Diversity" is so because of its festivals and its rich culture.