New Delhi, June 23 -- India's economic activity surged in June, buoyed by robust goods and services output, according to HSBC's flash Purchasing Managers' Index (PMI) survey released on Monday.

The HSBC Flash Composite Output Index, which tracks activity across manufacturing and services, rose to a 14-month high of 61, signalling a sharp and above-trend expansion across manufacturing and services.

A reading above 50 indicates expansion; the index has now remained in growth territory for over three years.

"Manufacturers led the upturn in business activity, though growth also picked up pace in the service economy. Rates of increase were at two- and ten-month highs, respectively," the survey, compiled by S&P, said.

"According to panellis...