India has lowered its estimate for gross domestic product (GDP) growth in 2011/12 to 6.2 per cent from 6.5 per cent, a government statement said on Thursday, increasing the base effect calculating the current year's growth.
Ashish Kumar, a senior official at the Ministry of Statistics and Programme Implementation, said the 5.4 per cent economic growth for the first half of 2012/13 would also be revised upward.
"The GDP number for 2011/12 has been revised down as the previous year's growth number has been revised up after getting latest data on industrial and fishing production for that period," Kumar said.
The government is due to release advance growth estimates for 2012/13 on February 7.
The Reserve Bank of India has forecast growth of 5.5 per cent for the year, while Finance Minister P Chidambaram has forecast 5.7 per cent.
Private economists and the Reserve Bank of India, the country's central bank, have often complained about the frequent revisions made to key indicators as they affect policy-making and forecasting.
"The volatility in data revisions is quite disturbing though we realise it is an onerous task. It raises questions about the reliability of data," said HDFC Bank economist Jyotinder Kaur.
"However, the saving grace is that trend in numbers remain in the same direction," she added.
The Central Statistics Office revised up economic growth for 2010/11 fiscal year to 9.3 per cent from 8.4 per cent, while manufacturing growth was revised up to 9.7 per cent, and farm output to 8.8 per cent for that period.
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