India's economy is showing early signs that a long-awaited private investment revival is taking hold, broadening the growth engines and making it more resilient to global shocks. Asia's third-biggest economy grew 7.8% in the April-June quarter, beating economists' forecasts for a 12th consecutive quarter. The stronger-than-expected expansion is helping shield an economy that remains heavily reliant on imported oil and is contending with higher commodity prices, foreign portfolio outflows and a soft currency.