The country's industrial production grew by 6.3 per cent in April this year, compared to 13.1 per cent growth in April last year, according to the new series, with a base year of 2004-05, that was released, today. According to the old data series, with a base year of 1993-94, the slowdown was sharper, with industrial output growing at 4.4 per cent in April this year, compared to a solid 16.6 per cent growth achieved in April last year. The growth was pulled down by poor performance of the manufacturing and mining sectors. As per the new series, manufacturing growth in April was 6.9 per cent, mining output rose 2.2 per cent, and electricity production grew 6.4 per cent. Capital goods grew 14.5 per cent. Production trends for 100 new items, including ice cream, mobile phones, and computer stationary have been included for measuring the pace of industrial production in the new index series. Obsolete items like typewriters and VCRs have been taken off the series. Commenting on the slower growth in industrial production in April this year, Finance Minister Pranab Mukherjee said it was disturbing. But he told newsmen that it was necessary to wait for more data to determine the trend.