Maha Kumbh. Need help with planning itinerary to kumbh. How to get rooms ?? Will hotel room be available or we have to book tents. Should it be done in advance or we can go there and find

Maha Kumbh. Need help with planning itinerary to kumbh. How to get rooms ?? Will hotel room be available or we have to book tents. Should it be done in advance or we can go there and find