From Cleaner Rivers to Healthier Rivers

A river can look clean and still be unhealthy. Water may meet prescribed standards while native fish disappear, seasonal flows change, floodplains shrink and groundwater connections weaken. New pollutants may go undetected. A river is more than water flowing between two banks; cleaning it is necessary, but does not by itself restore its health. As India looks towards Viksit Bharat@2047, the focus must shift from water quality to river health. Programmes such as Namami Gange are already moving...

min read

A river can look clean and still be unhealthy. Water may meet prescribed standards while native fish disappear, seasonal flows change, floodplains shrink and groundwater connections weaken. New pollutants may go undetected. A river is more than water flowing between two banks; cleaning it is necessary, but does not by itself restore its health. As India looks towards Viksit Bharat@2047, the focus must shift from water quality to river health. Programmes such as Namami Gange are already moving beyond pollution control towards biodiversity conservation, ecological flows and biological monitoring. The next measure of restoration should be whether a river is functioning as a living ecosystem. Beyond Clean Water The Central Pollution Control Board’s 2025 assessment, based on monitoring during 2022 and 2023, identified 296 polluted stretches across 271 rivers, compared with 351 polluted stretches identified in 2018. These figures describe pollution, and not river health. Suppose a river meets prescribed standards while its natural flow declines, native fish disappear or its floodplain is built over. Would we call it healthy? No physician would declare a person healthy after measuring blood glucose alone. Rivers, too, need a broader assessment that includes flow, aquatic life, sediments, groundwater and floodplains. European and Australian programs recognize this approach. Scientists at IIT (BHU) have developed and tested a River Health Index for the Ganga at Varanasi, bringing together measures of river condition across locations and seasons. Subsequent research has examined pharmaceutical pollutants and biological responses involving algae, small aquatic animals and fish. Aquatic organisms experience river conditions continuously. A water sample tells us what was present when it was collected; changes in aquatic life can reveal what has been happening over time. Emerging threats include medicine residues, personal care chemicals, microplastics and antimicrobial resistance. Studies of Indian rivers have detected antibiotic-resistant bacteria and genes associated with antibiotic resistance in water and sediments. Sewage, hospital waste, agricultural runoff and industrial discharges can introduce these threats into rivers, linking the health of people, animals and the environment. This is where the One Health approach becomes relevant. High flows, low flows and seasonal floods move sediments, create habitats, connect floodplains and support aquatic life. In many rivers, groundwater helps maintain flow during dry periods. In monsoon-dominated India, when and how water flows matter as much as its quantity. We often try to restore rivers by working on the rivers themselves. Yet many problems begin far from their banks. Deforestation and farming change runoff and erosion. Urban growth reduces the amount of rainwater entering the ground. Excessive groundwater pumping can reduce river flows. Dams alter water and sediment movement, while sand mining and construction damage riverbeds and floodplains. A river cannot ultimately be healthier than the basin that sustains it. Restoration must include tributaries, wetlands, groundwater, vegetated riverbanks and natural drainage routes, not merely treatment plants and riverfronts. The Sahibi illustrates this challenge. Rising in Rajasthan and passing through Haryana before entering Delhi, it has undergone major changes in its flow and surrounding landscape. Its links with Najafgarh Jheel and the Najafgarh Drain show how urban growth, sewage, altered flows and drainage works become intertwined. Treating water in its channel alone cannot restore the wider river system. India’s rivers also differ greatly. A Himalayan river fed by snow, glaciers and monsoon rain cannot be assessed exactly like a seasonal river in Rajasthan or a dam-regulated peninsular river. We need common principles, but different measures and restoration goals for different rivers. Climate change makes this task harder. Unpredictable rainfall, longer dry periods and extreme floods can alter flows, water quality and habitats. Restoration plans must account for these changes, while monitoring should tell us whether improvements last. Viksit Bharat@2047 offers an opportunity to establish a national River Health@2047 framework. It should examine water and sediment quality; natural flow patterns; aquatic life; the condition of riverbeds and floodplains; and the relationship between rivers and the people who depend on them. River Health Index These aspects tell us what to measure. But measurement alone cannot restore a river. Rivers need sufficient water through their natural seasonal cycles, supported by groundwater where appropriate. Pollution must be reduced and wastewater treated. Floodplains, wetlands and natural drainage routes must be protected. Aquatic habitats, biodiversity and connections within river systems must be restored. Farming, groundwater use, urban growth and industry must be managed without steadily damaging rivers. Governments, communities, universities, civil society and businesses must work together, with clear responsibilities for monitoring, protecting and restoring them.
A River Health Index can bring measurements together and identify where a river is under stress, why and what might help. Success must be measured by checking whether natural flows have returned and if aquatic life has recovered. Scientific findings must guide decisions about water use, land use and floodplain protection. Otherwise, even sophisticated measurements will achieve little. Importantly, restoration cannot remain the responsibility of scientists and government agencies alone. Technology cannot replace the knowledge of people who live beside rivers. Their observations of changing flows, disappearing fish and shrinking wetlands can help scientists judge whether restoration is working. This is the spirit behind Bharat Discourses on Rivers@2047: Connecting Science with the Society which begins on October 3 at IIT (BHU). The event raises vital questions. What should be different about Indian rivers by 2047? How will we know their health has improved? What is holding us back, and what must we do differently? Most importantly, what one or two actions should begin by 2027 to achieve our goals? Healthy rivers sustain biodiversity and livelihoods, recharge groundwater, carry sediments and accommodate floods. They are not an environmental luxury to consider after development; they are essential to development itself. We must leave the next generation not merely cleaner stretches of water, but living, resilient rivers. The question for 2047 is not simply, “Is our river cleaner?” It is, “Is our river healthier, and is its health continuing to improve?” (Dr. Singh is a Professor of Civil Engineering, Indian Institute of Technology (BHU), Varanasi; Dr. Paknikar is the ANRF Prime Minister Professor, COEP Technological University, Pune. Views personal.)

When the Princess Left Her Fortress…

Anishkaa Muthe

Dec 30, 2024

4 min read

Updated: Jan 2, 2025

I recently saw a movie, it had this dialogue “teenage girls are psychopaths” and maybe it is right, maybe we are a generation full of messed up kids trying to survive in this deathly jungle we’ve created for ourselves. And this survival gets harder when you’re a 16-year-old that moves into a city way bigger than their own, to ‘step into the world’ with rosy dreams and rosy expectations. I am one of those 16-year-olds, who with very romanticised notions, very naively decided to step into the ‘City of Dreams’: Mumbai.

Mumbai, is probably 10 times the size of my not very humble, but very little town. Moving to Mumbai was my dream since 1st grade, and when that dream manifested, I was on Cloud 9. I thought my life would be perfect, I’d have the perfect group of friends, I’d go to fancy parties, I’d do lots of events in college, I’d be known, I’d be in my ‘Academic Beast’ ‘It Girl’ era and what not; but reality is pretty far from any of that. Back in my town, I was the top of the hierarchy, the Perfect Girl, centre of attention, the Lovely Queen; after moving to Mumbai, my life of the last 13yrs came crashing down on me. I became this introverted, invisible person; the friends’ group or lots of parties definitely did not happen, neither did the academic beast and It girl era.

I came to realise that Mumbai, no matter how pretty, beautiful and picture-worthy, is very harsh and extremely tough. No matter how much anyone says ‘Mumbai embraces all’, the ‘All’ still do feel left out to some extent, when everyone around you is this confident Mumbai Kid and you’re this awkward girl from out of town who knows nothing about the city, its people or its ‘culture’, who’s trying to push through this humongous crowd that’s, without trying very hard, swallowing you down; but standing here, watching this city move past me, I wonder Does Mumbai really not bother about anyone Or Is it just not willing to let you in?

But there’s still something to hang on to, somewhere to belong, isn’t there? When you go back home and you have friends there; Spoiler Alert: you don’t. When I went back home for my first holiday, I realised I didn’t belong there anymore, now I was the Mumbai Girl; 13yrs lost and forgotten, within 3 months. That’s when it hit ‘I’m all alone now’ neither do I belong in Mumbai, neither do I back at home. Trust me, I have never felt more lost in my life.

I’m the kind of people who thrive on attention and external validation, to have that very thing taken from me was very hard to live with. So, I chose to cope by holding on, holding on how? Well, simple tactic, making an indirect statement saying “you excluded me, but I belong in places better than you” how I did that? I held onto my past self, my actions were based on how pretty, fun and ‘happening’ my life was to look on Instagram. I did have fun, not that I didn’t, but most of it was for the eyes of the world and not my own satisfaction [it still is that way, I haven’t gotten any better yet].

Then came my midterms, and I wasn’t as great as I thought I’d be and my extracurriculars weren’t anything major either. That made me realise that I was like any other kid around me here, unlike when I was back home, always the different one, the one that stood out, and suddenly I didn’t anymore, I was ordinary. The realisation hit me, right in the face, hard and strong, that in this huge ocean, I was no whale or shark, just another little fish in the Shoal. My future suddenly became scary, thinking about college and university became terrifying and I just wanted to avoid it all, simply run away [I still do, sometimes] And now, I’m a mess.

But not all of it was bad honestly, Mumbai taught me a lot of things, it humbled me and it helped see: within myself and so many things about myself that I never really knew and were suddenly crystal clear in front of my eyes, as if a very loud noise had been shut down and I could hear clearly again. Back at home, I had this persona designated to me: ‘The Perfect Girl’ and suddenly I didn’t have to be anyone anymore, it was harder that way honestly, to not have a script to follow anymore. I had to discover myself and who I truly was for the first time Ever; I think that’s what I’m doing now, getting to know myself beyond who I was 6 months ago.

Things aren’t any better right now, I don’t think they will be for very long and sometimes moving here may seem like the biggest mistake I’ve ever made, but I wouldn’t want it any other way. So, this new year I have one resolution: I’m going to find who I am, a new persona, a new person, not defined by her past self, past life and this Social Jungle of teenagers she’s surviving in. This new year will be of rediscovery. So, here’s to 2025 and to all of us, whose lives changed because they stepped into the big, bad world out there; let us all be proud of ourselves as this year ends, because leaving our homes and lives behind is not easy and we lived that down: The Shift, the way it hit our egos and shattered our sense of belonging, but we didn’t run away, we strived through it and are surviving to see the light of day.

So, A Very Happy New Year People.

(The author is a student of St. Xavier College, Mumbai.)

1 Comment

Jayaram Kousik .

Jun 12, 2025

Great write, yes Mumbai is a jungle and you have to fund your true bearings and none towards your destination