The economic data released by the government last week showed the kind of difficulties both policymakers and investors would face in the near to medium term. For the second month in a row, the National Statistical Office (NSO) did not release the headline consumer price inflation number because of difficulties in data collection. The limited data showed that food inflation stood at 9.28 per cent in May. In the case of the index of industrial production (IIP), the NSO released only the index numbers for April, which showed that output contracted by a record 55.5 per cent. The statistics department, however, noted that it was not appropriate to compare the April data with that of previous months as a number of units reported no production. The estimate will undergo revisions in the coming months. The IIP data indicated how the lockdown impacted industrial production, but a large revision could change the picture. While the lockdown has been relaxed significantly in most parts of the country, data collection will remain a challenge because of the continuous spread of Covid-19. Data deficiency and the possibility of large revisions would also significantly affect the quality of gross domestic product (GDP) estimates, at least for the ongoing quarter. GDP data in India undergoes significant multiple revisions even in normal times, but things would get more complicated in the coming quarters.

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