India, June 2 -- India may soon face an unexpected labour challenge: a shortage of blue-collar workers at home as developed economies increasingly look abroad to fill critical workforce gaps.

The warning comes from Ritesh Jain, founder of the Canada-based macro trends research firm Pinetree, who believes that a growing demographic imbalance across advanced economies is creating a major opportunity for skilled tradespeople in India.

According to Jain, the demand for workers such as plumbers, electricians, carpenters, drivers, nurses and caregivers is likely to surge as ageing populations and declining birth rates leave many wealthy nations struggling to maintain essential services.

In a recent LinkedIn post, Jain argued that the global ...