India will showcase the best practice for waste management adopted during the Maha Kumbh at the 'Regional 3R and Circular Economy Forum in Asia and the Pacific' to be held in Jaipur, Housing and Urban Affairs Minister Manohar Lal Khattar said Monday. At a press conference, he said 25 countries and 500 delegates will participate in the three-day event starting from March 3. The Maha Kumbh is the world's largest event and people are praising the best practices of waste management being implemented there, the Union minister said. The 45-day religious congregation, which began in Uttar Pradesh's Prayagraj on January 13, culminates on February 26. Over 60 crore people have taken a holy dip in the Triveni Sangam since it started, according to data from the Uttar Pradesh government. The Union minister said the religious congregation is being held on 4,000 hectares of land, an area large enough to accommodate a city. As many as 25,000 people have been deployed at the Maha Kumbh for waste .