Durga Puja is a major annual festival celebrated most notably in Kolkata, West Bengal, in September or October month. The ten-day festival is the best instance of the public display of culture and art. Check full list of UNESCO Intangible Cultural Heritage of India.
source https://www.jagranjosh.com/current-affairs/durga-puja-in-kolkata-on-unesco-intangible-heritage-list-1639630740-1