Home Secretary reviews progress of relief work in Chamoli By IANS | Published on Thu, Feb 11 2021 22:21 IST | 0 Views NDRF in Tapovan tunnel rescue work. Image Source: IANS News New Delhi, Feb 11 : Union Home Secretary Ajay Bhalla on Thursday reviewed the progress of rescue and relief work being carried out by the Central as well as state government agencies at the site of the hydro project of the NTPC at Tapovan on the Dhauliganga River in Uttarakhand. The Dhauliganga River was impacted by an avalanche incident in the upper catchment area of the Rishiganga River in Chamoli district of Uttarakhand on February 7.