The information was conveyed by Jairam Ramesh, minister of state for power and commerce today at a press conference.
"There was a proposal by NTPC to approach capital market but Finance Ministry has rejected it last week" he said.
The company's FPO, aimed at strengthening its huge capacity addition programme, was forwarded to the ministry of finance in August 2007 by the ministry of power.
NTPC is the country's largest power producer with a current installed capacity of about 28,000 Mw and plans to ramp it up to 51,000 Mw by the end of the eleventh plan period (2012).