After straying into the negative zone in December 2012 with a contraction of 0.5 per cent, the official data on the Index of Industrial Production (IIP) released on Friday revealed that factory output has remained positive for the third straight month following the improvement in growth numbers during the last month of 2012-13. This, however, is despite the fact that the IIP growth figure for February this year was marginally scaled down to 0.46 per cent from the provisional estimate of 0.6 per cent. Dr T C A Anant, secretary and chief statistician of India, speaks to NDTV about the data.