As many as 423 infrastructure projects, each entailing an investment of Rs 150 crore or more, have been hit by cost overruns of more than Rs 4.95 lakh crore, as per a report. According to Ministry of Statistics and Programme Implementation, which monitors infrastructure projects of Rs 150 crore and above, out of 1,568 projects, 423 reported cost overruns and as many as 721 projects were delayed.