India, Oct. 14 -- Annual maintenance work on the Upper Ganga Canal has disrupted raw water supply to two of Delhi's key water treatment plants, senior Delhi Jal Board (DJB) officials said. The canal is currently undergoing routine cleaning and repairs ahead of Diwali, which has also led to increased turbidity in the water.

The canal carries raw water to the Sonia Vihar and Bhagirathi water treatment plants which supply 140 MGD (million gallon per day) and 110 MGD water to parts of East Delhi, North and South Delhi. These two plants supply water to areas like Yamuna Vihar, Bhajanpura, Dilshad Garden, Nand Nagari, Gokulpuri, Nand Nagari, Jafrabad, Maujpur, and Karawal Nagar.

A senior DJB official said that the operations of the plans have...