How long did India's per capita GDP take to recover after 1918 pandemic?

The OECD recently said the world hasn't seen such an economic crisis in a century

The Paris-based Organisation for Economic Co-operation & Development (OECD) called the current economic crisis the worst peacetime situation in a century earlier this week.

It was 102 years ago that the influenza epidemic (more popularly called Spanish Flu) hit India. India’s per capita Gross Domestic Product had taken four years to recover from that crisis, reveal the numbers of the period, based on the Maddison Project Database 2018.

India's real GDP per capita (in 2011; US dollar equivalent), was $1,410 in 1917. It fell to $1,234 in 1918 as Spanish Flu began to spread across the country. The per capita income exceeded