"In a multipolar world, defence expenditure globally is set to increase as countries enhance their defence capabilities. Self-reliance in defence led by strong R&D (Research and Development) focus and enhancement of manufacturing capabilities creates opportunity for Indian companies to serve domestic market as well as tap large export potential. This could offer a multi-decadal investment opportunity," said Abhishek Poddar - Fund Manager - Equity and Senior Equity Analyst, Dealing and Investments at HDFC AMC.