Government will sell five per cent stake in country's largest power producer National Thermal Power Corporation (NTPC) tomorrow. It will be sold at a floor price of 122 rupees per share to raise over five thousand crore rupees. The stake sale would be spread over two days with institutional bidders getting the first chance to buy shares tomorrow. Retails investors, for whom 20 per cent shares have been reserved, will get to bid on 24th of this month. In May last year, the Cabinet had approved the five per cent stake sale in NTPC. The government holds 74.96 per cent in the firm. It had last sold stake in NTPC in February 2013.