The company in the statement said the QIB (Qualified Institutional Buyers) oversubscribed by 4.2 times, garnering Rs 423 crore against allocation of Rs 100 crore. "Corporates contributed Rs 1,374 crore against allocation of Rs 250 crore, oversubscribed by 5.5 times," the statement said, adding that HNI (High Networth Individuals) also chipped in with Rs 851 crore against allocation of Rs 250 crore and over-subscription of 3.4 times. The company, last month, filed a prospectus with the Registrar of Companies (RoC), Delhi and Haryana in connection with its proposed public issue of tax-free secured redeemable non-convertible bonds, NTPC said. The lead managers to the issue are ICICI Securities, A K Capital Services, Axis Capital, SBI Capital Markets and Kotak Mahindra Capital Company. Currently, NTPC has a capacity of nearly 42,000 MW and targets to add about 14,000 MW to its total capacity by the end of 2016-17. Shares of NTPC closed at Rs 145.70 apiece, down 1.09 per cent on the BSE.