Dehradun, Aug. 6 -- The Gangotri and Yamunotri National Highways were blocked at different locations in Uttarkashi district following road obstruction and continuous rockfall, while authorities in Dehradun released floodwater from the Asan Barrage after a sharp rise in water discharge in the Asan River.

According to the Uttarkashi district administration, the Gangotri National Highway has been blocked near Dharasu Nalu Pani due to road obstruction. The Yamunotri National Highway has also been blocked near Silai Bend in the Durbil area following continuous rockfall and debris falling from the hillside.

The Uttarkashi district administration said that the Rishikesh-Yamunotri National Highway (NH-134) remains blocked near Silaiband in Syan...