In which year did UNESCO recognize Durga Puja as an Intangible Cultural Heritage?

Explanation

2021. Several Indian festivals are recognized by UNESCO as Intangible Cultural Heritage of Humanity, including the Kumbh Mela (inscribed in 2017), the Durga Puja in Kolkata (inscribed in 2021), and the Garba of Gujarat (inscribed in 2023). Other examples include Yoga (2016), Sankirtana of Manipur (2013), Buddhist Chanting of Ladakh (2012), and the Ramlila (2008).