A group of Hindu devotees perform the rituals of Charak Puja. It is a very enchanting folk festival of Southern Belt of Bangladesh and West Bengal. It is also known as “Nil Puja”. The believers of Hindu religion celebrate this on the last day of the Bengali month of the year (Chaitra Songkranti). People believe that the festival will carry prosperity by eliminating the sorrow and sufferings of the previous year. The festival is actually a festival to satisfy “Lord Shiva”, the great “Debadideb” of Hindu Religion. Sylhet, Bangladesh.