A division bench of the court's Madurai bench, comprising Justices S.Nagamuthu and M.V.Muralidharan, said according to the experts, oil formed a layer and prevented oxygen and sunlight entering the water.
This would affect agricultural lands also, the court said, banning sale of shampoo, oil and detergents near the falls and at Courtallam town.
The court was hearing a petition filed by shop owners, seeking to modify the order banning soap and oil at the falls, saying the ban affected their livelihood.
It said that apart from one TASMAC (state-run liquor outlet) shop which was located 1.5 km away no new state-run outlets should be opened.
Also Read
It also said tourists could visit the forest area for offering worship at Shenbagadevi temple with permission of the forest officials, and the officials could remove them if anyone caused "harm to the forest."
The court banned the use of plastic cups and bags in the area if they exceeded the "permitted level."
It agreed with the collector that the panchayat alone could collect the parking fee, and said it should maintain the parking area. The court had earlier issued 33 directions to protect the tourist regiion including banning use of shampoo,soap oil, among others, at thefalls.
The committee said during the tourist season one lakh people took oil bath and this caused considerable damage to water quality.
Disclaimer: No Business Standard Journalist was involved in creation of this content