The challenge for India vs its peers is starker if infections spread rapidly considering the higher density of population per capita and weaker health infrastructure, UBS' economist Tanvee Gupta Jain said.
The brokerage said, increased risks of a global recession and recent mobility restrictions and social distancing measures are moving it to place India under the "severe pandemic" scenario.
The real GDP growth will slow to under 2.5 per cent for the June 2019 quarter, from the estimate of 4 per cent for March, it said.
It said the economic impact will be determined more by the mobility restrictions on the population, rather than the growth of the affected cases per se.
It said the shutdowns like those of shopping malls and of select districts will impactconsumption in the economy. It can be noted that in the past, economists have been stressing that India is a consumption-driven economy.
The brokerage pitched for a coordinated and concerted fiscal stimulus in the light of the current scenario.
This can either be a direct consumption stimulus in form of cash transfers or indirect one by giving sector-specific incentives to industries to avoid large-scale job losses which will be directed towards small and medium enterprises or stressed sectors, it said.
The RBI is most likely to cut rates at the April 3 review meet and cut its key rates by 1 percentage point over the next year, it said.