India's retail inflation declined to 2.99 per cent in April, as against 3.89 per cent in March, as per new base year of 2011-12.
The data released by the government on Friday is part of a new series of wholesale inflation and industrial output data, revising the base year to 2011/12 from 2004/05.
As per the new series, the wholesale price based inflation slowed down to 3.85 per cent in April, from 5.29 per cent in March.
The inflation rate is lower than a 4.79 percent annual rise forecast by economists in an international poll.
According to agency reports, India registered a 2.7 per cent rise in the industrial output in March as against 5.5 per cent a year ago.
According to the figures issued, India's industrial growth was recorded at 5 per cent in 2016-17 as against 3.4 per cent a year ago based on the new series.
As per the old series (2004-05), IIP grew by 2.5 per cent in March and 0.7 per cent in 2016-17.