India's BSE Sensex has delivered a 15,594% return over the past 40 years. The index climbed from approximately 549 points at its launch in January 1986 to nearly 86,000 points today, with major milestones including crossing 10,000 points in 2006 and 50,000 points in 2021. Over the past 40 years, Sensex has delivered annualised returns of about 13.4%.