Journalists and analysts typically spend the days after the Union Budget is presented picking over specifics in the Budget document and reading the fine print to understand various policy decisions. But what do you do when a perplexing decision is announced and there’s nothing in the documents — in fine print or otherwise — to explain the logic behind it? Finance Minister Pranab Mukherjee’s intent to extend viability gap funding (VGF) to a host of new sectors is a case in point.