India, Nov. 20 -- New Delhi

The Delhi Jal Board (DJB) has written to neighbouring states flagging sewage and industrial waste being carried to the Yamuna through their drain networks, and urged them to take corrective measures, such as ramping up sewage treatment, at the point of origin of the waste.

The communique highlighted a need to tackle 187 million gallons a day (mgd) of polluted wastewater from Haryana emptying into the Najafgarh drain, 105mgd from the Badshahpur drain and Kundli industrial area, 105mgd of untreated industrial waste entering the Shahdara drain from Uttar Pradesh, causing heavy biological oxygen demand (BOD) load in the Hindon Cut Canal.

"...it is a fact that wastewater is being discharged from Haryana. Out of t...