JAIPUR: Rajasthan Chief Minister Ashok Gehlot laid the foundation stones for a plant for cleaning of the Chambal river waters to be installed at a cost of Rs.149.59 crore under the National River Conservation Project as well as for three other projects in Kota on Wednesday.

Six sewage pumping stations and two sewage treatment plants of the capacity of 30 million litres per day (MLD) and 6 MLD w