India, June 9 -- Union home minister Amit Shah on Monday asked Haryana, Delhi, and Uttar Pradesh to collectively ensure a standard ecological flow in the Yamuna river, which is currently at a low level and affecting the water supply in parts of Delhi.

Environmental flow, or e-flow, refers to the minimum flow of water required in a river to sustain its ecological health.

Chairing a review meeting on Yamuna revitalisation in the national capital, Shah urged the governments of Delhi, Haryana, and Uttar Pradesh, along with all concerned ministries, to work towards cleaning the Yamuna not in a fragmented manner, but through an integrated action plan driven by a spirit of teamwork.

Shah also announced that a Memorandum of Understanding (MoU)...