A month-long national lockdown can shave off 1-2% of GDP, claims report According to a report by Bank of America Securities India, a month-long national lockdown to stem the spread of COVID 2.0 could scrape off 100-200 bps (basis points) of the GDP resulting in a 300-bps risk to annual growth BusinessToday.In | April 27, 2021 | Updated 13:13 IST Given the high economic cost, the brokerage expects the Centre and the states to try to contain the spread with further tightening of night curfews and localised lockdowns A month-long national lockdown to stem the spread of COVID 2.0 could scrape off 100-200 bps (basis points) of the GDP (Gross Domestic Product), resulting in a 300-bps risk to annual growth, according to a report by Bank of America Securities India, which also expressed reservations over the ability of local lockdown to control the coronavirus pandemic.