The 'reverse flow' is widely considered an optical illusion caused by the surrounding sloped terrain, similar to magnetic hill phenomena elsewhere in the world.
Mainpat, where this site is located, is a high-altitude plateau situated at approximately 1,100 meters above sea level.
The region is historically significant as a settlement for Tibetan refugees who established the first Tibetan camp in India here in 1963.
The site is often visited in conjunction with the nearby Jaljali, a unique patch of land that bounces when jumped upon.
UltaPani, also known as Bisarpani, is a site in Mainpat where water appears to flow uphill against the force of gravity. This geological anomaly is located on the Ambikapur-Mainpat road in Chhattisgarh. The phenomenon occurs in a small channel where the local topography creates a visual illusion of upward water flow. The site is a primary tourist attraction within the plateau region known as the 'Shimla of Chhattisgarh'. Visitors observe the water movement from a designated roadside vantage point. The surrounding area features mountainous terrain and temperate weather throughout the year.
The designated roadside barrier railing that overlooks the channel.
Bring a water bottle to pour onto the ground; testing the flow yourself helps clarify the optical illusion.
Visit during or shortly after the monsoon season when water levels are higher and the effect is more visible.
Ensure your vehicle has good braking capability as the approach road involves significant inclines.
Do not expect a massive waterfall; the phenomenon is a small-scale flow in a roadside ditch.