Crores of devotees from different places around the world including India have taken a holy bath in the Mahakumbh held in Prayagraj, Uttar Pradesh. In January and February, this fair lasted for 6 weeks, in India Who To prevent polio disease from spreading, it has helped in strengthening polio monitoring with the government. India is a polio -free country, but since the devotees come from many places, there were also fears of infection spreading. (Video)