This investigation into Delhi's underbelly began with a visit to a sewage treatment plant located in the eastern part of the city, situated between a highly congested and relatively poorer part of

The current pipe-drains-plant strategy is not working. Therefore, more of the same, without reworking its approach, will mean just more money down the drain.

The Yamuna is Delhi's shame. But its pollution management is its government's shame. It cannot be acceptable that we have spent money, time and energy, but have so little.

• Ensure all waste, legal and illegal, is trapped and treated to keep the drain clean
• Augment and optimise treatment facilities, where needed, to treat this waste. Appropriate technologies of scale (centralised or local) should be adopted
• Ensure treated effluent is reused and not mixed with untreated effluent before it flows to river

This is a story about Delhi and the Yamuna, about the relationship between one of India’s richest cities and one of her most revered rivers. The plot is an economical one: the Yamuna stretches 22 kilometres along Delhi, but after Rs 55 crore to Rs 75 cror

More Men in Black

Of all dyes produced across the world, 11 per cent goes out as effluents. 2 per cent from manufacturing and as much as 9 per cent from colouring. Each year, India produces 64,000 tonnes of dyes, 7,040 tonnes of which are directly discharged into the envir

Over 2,500 odd kilometers this river meanders, flowing through the lives of over 500 million people, enabling a vast basin spread over Nepal, India and Bangladesh. Historically, the rich silt the river carried attracted millions to flock to it. The river

The popular Hindi saying

During 2000, the estimated quantity of solid waste generated in Delhi, India was more than 9000 tones per day. This is one of the biggest sources of environmental degradation in capital city of India. Since 1950's over 12 large landfill have been packed with all kinds of nonbiodegradable and toxic waste of Delhi. The area covered is at least 1% (14.83 square kilometer) of total Delhi's area.

The ability of many introduced fish species to thrive in degraded aquatic habitats and their potential to impact on aquatic ecosystem structure and function suggest that introduced fish may represent both a symptom and a cause of decline in river health and the integrity of native aquatic communities.