Analyzing the quantitative progress of river rejuvenation, water quality trends, and the scientific modernization of Varanasi’s cremation ghats.
Introduction
The Ganges is more than a river; it is the spiritual and economic artery of India, supporting over 500 million people. Yet, for decades, it has suffered from acute pollution caused by untreated sewage, industrial effluents, and traditional cremation practices. In 2014, the Government of India launched the Namami Gange project, an integrated conservation mission with a budget outlay of over ₹40,000 crores (PIB, 2025). As we navigate through the data of 2024–2025, a critical question arises: How far have we actually come?
This analysis evaluates the tangible impacts of the mission, specifically focusing on sewage diversion, water quality variations across key cities, and the scientific evolution of Varanasi’s ancient cremation rites.
The Battle Against Sewage: Progress and Gaps
The primary antagonist in the story of the Ganges is raw sewage. The historic practice of open drains discharging directly into the river has been the mission's central target.
Interception and Diversion (I&D)
The core strategy of Namami Gange is "Interception and Diversion"—stopping drains before they hit the river and diverting them to Sewage Treatment Plants (STPs).
Target vs. Reality: The mission targets a total sewage treatment capacity of roughly 7,000 million liters per day (MLD) by December 2026. As of mid-2025, approximately 52% of this targeted capacity has been achieved (PRS Legislative Research, 2025).
Project Completion: Out of nearly 216 sanctioned sewerage infrastructure projects, roughly 167 STPs have been made operational, creating a treatment capacity of over 3,700 MLD (PIB, 2025).
While the stoppage of major drains like the Sisamau drain in Kanpur—once a notorious pollutant discharging 140 MLD of raw sewage—marks a significant victory, the gap between sanctioned and operational capacity highlights a bottleneck in execution. Approximately 48% of the required infrastructure remains under construction or in the tendering phase.
Water Quality Assessment: A Tale of Different Cities
The health of the river is measured primarily by Dissolved Oxygen (DO) and Biochemical Oxygen Demand (BOD). For water to be safe for bathing, DO should be >5 mg/L, and BOD should be <3 mg/L.
1. Haridwar and Rishikesh (Upper Reaches)
In the upper stretches, the river remains largely healthy. Data indicates that the river stretch from Haridwar to Sultanpur has improved significantly and has been removed from the "Polluted River Stretch" (PRS) priority list entirely (PIB, 2025). The water here consistently meets the Class A (drinking water source without conventional treatment but after disinfection) standards.
2. Kanpur to Prayagraj (Middle Reaches)
This stretch has historically been the "graveyard" of the river due to tannery waste.
Improvement: The stretch from Farrukhabad to Kanpur, previously a critical Priority IV zone, has shown improvement to Priority III.
Current Status: While DO levels have stabilized above 5 mg/L, BOD levels still fluctuate, often exceeding 3 mg/L during the lean season when water flow decreases (CPCB, 2025).
3. Varanasi to West Bengal (Lower Reaches)
Varanasi presents a complex challenge. The downstream stretch from Varanasi to Tarighat remains in Priority Class V, indicating that marginal pollution persists. However, the presence of the Gangetic Dolphin—a key indicator species—has risen from ~3,000 in 2009 to ~6,327 in 2024, suggesting a recovery in the river's ecological carrying capacity (PIB, 2025).
Scientific Modernization of Varanasi’s Cremation Ghats
Varanasi handles over 30,000 cremations annually. Traditional open-wood pyres release particulate matter, carbon monoxide, and partially burnt biological matter into the river. To balance faith with ecology, a "green cremation" approach is being scientifically developed.
The Problem with Tradition
A traditional pyre requires 300–400 kg of wood. Incomplete combustion results in "ash dumping," which increases the river's turbidity and BOD load.
Scientific Interventions
Improved Wood Pyres (Green Cremation System):
The IIT-designed "Green Cremation System" uses a raised metal grate and a chimney system. This design improves air circulation, reducing wood consumption by 50% and cutting particulate emissions by significant margins. It maintains the ritualistic requirement of using wood and fire (Mukhagni) while drastically reducing the carbon footprint.
Electric and Gas Crematoriums:
The modernization of Harishchandra Ghat now includes high-efficiency electric incinerators. While culturally less preferred, their usage has risen to roughly 80% for unclaimed bodies and the economically weaker sections. The new redevelopment plans include:
Scrubbers: To trap emissions before release.
Ash Management Units: To ensure zero solid waste enters the river directly.
Harishchandra Ghat Redevelopment Project:
This project aims to create a "Smart Ghat" model. It integrates a 25-body-per-day capacity using eco-friendly technology, reducing CO₂ emissions and process time, while retaining the spatial hierarchy required for rituals (Kashi Official Web Portal, 2025).
Quantitative Summary of Progress (2014–2025)
| Indicator | Status in 2014 | Status in 2025 | Trend |
| Sewage Treatment Capacity | ~1,300 MLD | ~3,781 MLD | ↑ Increased ~3x |
| Dolphin Population | ~2,500 - 3,000 | ~6,327 | ↑ Recovery |
| Funds Utilized | N/A | 69% of Allocation | ⚠ Underutilized |
| Polluted Stretches (Priority) | Numerous Priority IV/V | Haridwar (Clear), Kanpur (Improved) | Mixed Success |
Conclusion
The Namami Gange mission has moved the needle from "inaction" to "infrastructure creation." We have successfully stopped key drains and tripled our sewage treatment capacity. However, the "cleanliness" of the Ganges is not yet absolute. While Haridwar shines, Varanasi and downstream stretches still struggle with the sheer volume of urban density.
The future lies not just in building more STPs but in the scientific management of cultural practices—like the greening of Varanasi's ghats—and ensuring that the infrastructure built today operates at 100% efficiency tomorrow. The Ganges is healing, but the patient is not yet out of the ICU.
References
Central Pollution Control Board. (2025). Polluted River Stretches for Restoration of Water Quality, 2025. Ministry of Environment, Forest, and Climate Change.
Kashi Official Web Portal. (2025). Redevelopment of Harishchandra Ghat. Government of Uttar Pradesh.
https://kashi.gov.in PIB. (2025). Current Progress of the National Mission for Clean Ganga. Press Information Bureau, Government of India.
PRS Legislative Research. (2025). Demand for Grants 2025-26 Analysis: Jal Shakti. Institute for Policy Research.
Sinha, A. (2020). Ghats on the Ganga in Varanasi, India: A Sustainable Model for Waste Management. Landscape Journal, 37(2).
Bibliography
Das, S., & Tamminga, K. R. (2012). The Ganges and the GAP: An Assessment of Efforts to Clean a Sacred River. Sustainability, 4(8), 1647–1668.
Mishra, V. (2005). The Ganga at Varanasi and a travailing sage. Global Environmental Change, 15(1).
National Mission for Clean Ganga. (2024). Annual Report 2023-24. Ministry of Jal Shakti.
World Bank. (2023). National Ganga River Basin Project: Implementation Status and Results Report. World Bank Group.
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