As many as 647 infrastructure projects, each worth Rs 150 crore or more, have been hit by cost overruns totalling more than Rs 4.65 lakh crore, according to a report. The Ministry of Statistics and Programme Implementation monitors infrastructure projects worth Rs 150 crore and above. Of the 1,526 such projects, 647 are delayed, 393 reported cost overruns and 219 projects reported both time and cost overrun.