The government's plan to raise capital by disinvesting its stake in various public sector undertakings got off to a flying start on Friday, with its offer for sale of 5% stake in public steel sector firm Steel Authority of India Ltd getting oversubscribed by over two times mopping up Revenues from selling shares in state-owned companies is critical to the government's plans to keep the fiscal deficit -- shorthand for the amount of money the government borrows to fund its expenses -- at 4.1% of GDP in 2014-15. A shortfall in revenues may prompt the government to raise indirect taxes -- it has already done it twice in petrol and diesel in the last two months -- hurting prices.