The Central Water Commission (CWC) under the Water Resources Ministry, which monitors water quality at 396 stations located in all the major river basins, published a report "Water Quality Hot Spots in Rivers of India" in 2011, Water Resources Minister Harish Rawat said while replying to a question in the Lok Sabha question.
The minister said the Central Pollution Control Board (CPCB) under the Ministry of Environment and Forest (MoEF) also monitors the water quality of the rivers at 1,275 stations located on 445 rivers.
Maharashtra topped the list of having the maximum number of rivers having 28 polluted stretches namely Bhima, Godavari, Mula and Mutha, Pawana, Panchganga, Patalganga, Indrayani, Koyna, Kundalika, Kalu, Kanhan, Kolar, Mithi, Tapi, Girna, Nira, Weinganga, Wardha, Krishna, Purna, Nira, Chandrabhaga, Venna, Ulhas, Rangavali and Bhatsa.
The minister told the House that 19 such polluted stretches were found in Gujarat by CPCB.
The MoEF is supplementing the efforts of state governments in abatement of pollution in identified stretches of various rivers under the National River Conservation Plan (NRCP) including National Ganga River Basin Authority (NGRBA) programme for implementation of projects on a cost-sharing basis between central and state governments.