India, Aug. 30 -- The tricity of Chandigarh, Panchkula and Mohali were on Friday put on flood alert following a sharp rise in the water level of the Ghaggar river and the opening of floodgates at Sukhna Lake after heavy overnight rainfall across the region, officials said.

Two of the three Sukhna floodgates were opened on Friday morning, one at 3.30am and the second at 4am, as the water level breached the danger mark of 1,163 feet. This is the sixth time this monsoon that floodgates of the lake have been opened due to the rising water level. One of the floodgates was closed at 11.30am while the other was closed at 1.30pm as the water level dropped to 1,162.80 ft.

Due to heavy rain in Himachal Pradesh, the Ghaggar river that flows throug...