India's growth in a six-year period spanning both the Congress-led UPA government and the BJP-led NDA government was overstated by about 2.5 per cent, former Chief Economic Adviser Arvind Subramanian suggests in an article published by the Indian Express newspaper on Tuesday. The average annual growth between 2011-12 and 2016-17 may have been about 4.5 per cent, not seven per cent, he says, referring to his research paper.