An IIT Ropar study has challenged BBMB estimates on silt accumulation and storage loss in the Gobind Sagar reservoir of Bhakra Dam. The study estimated overall capacity loss at 38%, compared with BBMB's 47%. It also pegged live storage loss at 13% and gross storage loss at 19%, lower than BBMB estimates of 19% and 26%, respectively. Experts stressed the need for better sediment management.