There are 302 polluted river stretches along 275 rivers in the country. The pollution assessment is based on the bio-chemical oxygen demand (BOD) levels which are the key indicators of pollution, MoS (Independent Charge) of environment, forest and climate change, Anil Madhav Dave said in a written reply in the Rajya Sabha.

Out of these, there are 13 stretches along rivers in Uttar Pradesh, 21 polluted stretches are in Madhya Pradesh, Gujarat has around 20 polluted stretches, while Maharashtra tops the list with 49 polluted stretches.

River Ganga, for which the government rolled out Namami Gange programme and created a separate ministry [Water Resource, River Development and Ganga Rejuvenation], was found to be polluted in four states out the five states the river irrigates. The river’s stretches are polluted in Uttarakhand (where it originates), Uttar Pradesh, Bihar and West Bengal. It isn’t polluted in Jharkhand, as mentioned in the report.

Here is the complete list

S.No.	State	Stretch Identified	Number
1	Andhra Pradesh	Godavari, Hundri,Krishna, Tungabhadra, Pennar, Kundu	6
2	Assam	Mora Bharali, Barak,Beki,Bharalu, Bhogdoi,Boginadi, Brahamputra, Burhidihing, Deepar Bill, Dhansiri, Digboi, Disang, Jia Bharali, Jhanji , Kalong, Kapili, Kharsang, Kohora, Kundli, Kushiara, Manas, Pagldia, Panchnai, Ranga Nadi, Sankosh, Sonai,Subansiri, Kathakal	28
3	Bihar	Ganga, Harbora, Manusmar, Ram Rekha, Sirsia	5
4	Chhattisgarh	Hasdeo, Kelo, Kharoon, Mahanadi, Seonath	5
5	Daman, Diu and Dadra Nagar Haveli	Damanganga	1
6	Delhi	Yamuna	1
7	Goa	Mandovi, Assonora, Bicholim, Chapora, Khandepar, Mapusa, Sal, Valvant	8
8	Gujarat	Mahi, Narmada, Ambika, Amlakhadi, Anas, Balehwar Khadi, Bhadar, Damanganga, Kaveri, Khari, Kim, Kolak, Panam, Bhogavo, Dhadar, Purna, Sabarmati, Shedhi, Tapi, Triveni,	20
9	Haryana	Ghaggar, Yamuna	2
10	Himachal Pradesh	Beas, Tons, Sirsa, Swan, Sukhana, Suketi Khad, Binwa, Markanda	8
11	Jammu & Kashmir	Banganga, Basanter, Chenab, Chunt Kol, Dewak, Gawkadal, Jhelam, Lidder, Tawi	9
12	Jharkhand	Bokaro, Koel, Damodar, Jumar, Karo, Sankh, Subarnarekha, Koel	8
13	Karnataka	Arkavathi, Bhadra, Bhima, Cauvery, Ghatprabha, Kabini, Kagina, Kali, Krishna, Lakshmantirtha, Malprbha, Manjira, Shimsha, Tungabhadra, Tungha	15
14	Kerala	Chitrapuzha, Kadambayar, Kallai, Karamana, Keecheri, Kuppam, Manimala, Neeleswaram, Periyar, Pullur, Puzhackal, Thirur, Uppala	13
15	Madhya Pradesh	Banjar, Betwa, Bichia, Chambal, Chillar, Denwa, Gohad, Gour, Jammer, Kalisot, Khan, Kolar, Kshipra, Kunda, Malei, Narmada, Parvati, Shivna, Tapi, Tons, Wainganga	21
16	Maharashtra	Wena, Wainganga, Godavari, Bhima, Krishna, Ulhas, Kundalika, Tapi, Girna, Panchganga, Nira, Bhatsa, Rangavali, Indrayani, Chandrabhaga, Vashisti, Mithi, Kanhan, Koyna, Amba, Amravati, Bindusara, Darna, Ghod, Gomai, Hiwara, Kan, Manjara, Mor, Morna, Mula, Mula- Mutha, Mutha, Panzara, Patalganga, Pawna, Pedhi, Pelhar, Penganga, Purna, Savitri, Sina, Surya, Urmodi, Vaitrana, Vel, Venna, Waghur, Wardha	49
17	Manipur	Barak, Imphal, Iril, Khuga, Khujairok, Lokchao, Maha, Manipur, Nambul, Sekmai, Thoubal, Wangjing	12
18	Meghalaya	Bugi, Kynshi, Kyrhukhla, Lukha, Myntdu, Nonbah, Umkhrah, Umshyrpi, Umtrew, Wahblei	10
19	Nagaland	Chathe, Dhansiri, Dzu	3
20	Odisha	Baitrani, Brahamani, Budhabalnaga, Daya, Kathajodi, Koel, Kuakhai, Mahanadi Nagavalli, Rushikulya, Serua, Vansadhara	12
21	Punjab	Ghaggar, Satluj	2
22	Rajasthan	Banas, Chambal, Chappi, Ghaggar, Kali Sindh, Parvati, Jawai, Ujad	8
23	Sikkim	Dikchu, Maney Khola, Rangit, Ranichu, Teesta	5
24	Tamil Nadu	Bhavani, Cauvery, Palar, Sarabanga, Tambirapani, Thirumanimuthar, Vasista	7
25	Telangana	Godavari, Krishna, Manjeera, Musi, Nakkavagu, Sabari, Maner	7
26	Tripura	Gumti, Haora	2
27	Uttar Pradesh	Betwa, Ghaghara, Gomti, Hindon, Kalinadi, Ramganga, Rapti, Rihand, Sai, Saryu, Ganga, Yamuna, Kosi	13
28	Uttarakhand	Bhela, Dhela, Suswa, Ganga, Kosi	5
29	West Bengal	Barakar, Churni, Damodar, Dwarakeshwar, Dwarka, Ganga, Jalangi, Kaljani, Kansi, Karola, Mahananda, Mathabhanga, Mayurkashi, Rupnarayan, Silabati, Teesta, Vindhadhari	17
Total :			302

In his reply, Dave said that the ministry has been supplementing the efforts of the state governments to reduce the pollution in identified stretches of various rivers under National River Conservation Plan (NRCP) and NGRBA (National Ganga River Basin Authority) programmes. These programmes, before the formation of ministry of water resource have covered polluted stretches of 43 rivers in 200 towns spread over 21 States at a sanctioned cost of Rs 12202.59 crore so far.

Sewage treatment capacity of 5169 million litres per day (MLD) has been created under these programmes. He claims that the Central Pollution Control Board (CPCB) has issued directions the State Pollution Control Board/Pollution Control Committees regarding setting up of sewage treatment plants and utilisation of sewage generated in their respective States. In 2015, it also issued directions to 69 municipal authorities of metropolitan cities for proper treatment and disposal of sewage generated to control pollution in rivers and other water bodies.

Steps have also been taken by CPCB to promote low waste and no waste concept, leading to zero liquid discharge by grossly water polluting industries, particularly those located on the river banks, read his reply in the Rajya Sabha.