During Worshiping of Goddess Kali people of Kolkata enjoying a firework competition near the Club Pandal. Diwali or Kali Puja is a very vibrant and colorful festival of India. Here in this frame this firework has a name " Tubri " or " fire fountain ",is a clay pot full of a mixture of Iron dust / Almunium dust called " lohachur/almunium chur " ,Sodium Nitrate called "Sora ", Wood Charcol called " Kath Koila ", Sulpher called " Gandhak " etc .