The fraud scheme was operating in Maharashtra and Andhra Pradesh as well; police yet to arrest other officers of the online 'data science programme' firm.
Teachers from Ramanagara, Chitradurga and other places had made the same demand saying students and teachers would otherwise have to clean the toilets.
The affected people are said to have consumed water from an unclean water tank, according to sources. There are also reports that sewage water got mixed with drinking water due to a leakage in the pipeline.