A house-to-house survey is being conducted in the national capital to aid the battle against the Covid-19 pandemic. Delhi is one of the worst-hit areas in the country with total cases past the 70,000-mark. At least 26,500 cases are active while over 2,300 patients have succumbed to the disease so far. The house-to-house survey is a part of Delhi's government's 'Revised Covid Response Plan'. Watch the full video for more.