NGT asks Chhattisgarh to file report on fly ash utilisation
The state generates over 20 million tonnes of fly ash every year, but about 70 per cent of it remain unutilised
Green tribunal panel finds ash from Okhla plant 'truly hazardous'
Tribunal directs waste management company to control emissions, record plastic content of waste
Concrete without sand?
The world is sitting over a landfill of possible substitutes for sand