Economic growth slowed to 7.1 per cent in the July-September period against 8.2 per cent in the June quarter, government data showed on Friday. In the corresponding quarter last year, gross domestic product (GDP) had grown 6.3 per cent. At this rate, the GDP growth was the lowest in three quarters, but still remained ahead of China, thus still retaining India as the world's fastest-growing major economy, reported news agency Press Trust of India. This was below a median estimate in a poll of economists by news agency Reuters who had put the annual GDP growth at 7.4 per cent in the second quarter. GDP at constant (2011-12) prices in the second quarter of 2018-19 is estimated at Rs. 33.98 lakh crore, as against Rs. 31.72 lakh crore in the corresponding quarter last year, according to an official statement.