Why India's strong economic growth sparks debate over accuracy of official data?

India’s unexpectedly strong GDP growth has triggered a public dispute over whether official data is accurately measured. India’s GDP rose 7.8% in the three months through June from the same period a year earlier, beating the 7.1% forecast in a Reuters poll, helped by an investment boom, manufacturing strength and steady consumer demand. Former Reserve Bank of India governor Raghuram Rajan questioned why the growth isn’t translating into better job creation, domestic investment and foreign portfolio inflows. Subhash Chandra Garg, a former top Finance Ministry bureaucrat, argued growth was inflated after the government reduced the GDP measure for the prior-year period used for comparison. India’s statistics ministry defended methodological changes introduced in February.