Section 17(1)(xi) in THE NATIONAL BANK FOR FINANCING INFRASTRUCTURE AND DEVELOPMENT ACT, 2021
(xi)subscribe to or purchase, underwrite, acquire, hold or sell stocks, shares, bonds, debenture stocks, debt securities, obligations and securities, commercial papers, certificates of deposit or debentures issued or guaranteed by any company or trust or registered society or co-operative society or association or the Central Government or any State Government or any financial institution funding infrastructure, to facilitate financing of infrastructure projects in India, or partly in India and partly outside India, or to facilitate deepening of bond market for infrastructure financing;