Government Securities (G-Secs) are debt instruments issued by the Central Government or State Governments of India to raise a public loan, acknowledging the government's debt obligation. This concept is a financial instrument, not an act or institution, and is considered practically risk-free due to the sovereign guarantee, earning them the name "gilt-edged instruments". The origin of the legal framework for G-Secs is the Public Debt Act, 1944, which was later replaced by the Government Securities Act, 2006. The 2006 Act, which came into force on December 1, 2007, consolidated and amended the law to improve the government securities market and its management by the Reserve Bank of India (RBI).
The mechanism involves the RBI issuing G-Secs on behalf of the government, primarily through an auction process, to fund fiscal needs like infrastructure projects and welfare schemes. G-Secs are broadly classified into short-term Treasury Bills (T-Bills), which mature in less than one year (e.g., 91-day, 182-day, 364-day), and long-term Dated Securities or bonds, which have maturities ranging from one year up to 40 years. T-Bills are zero-coupon securities issued at a discount and redeemed at face value, while Dated Securities typically pay a fixed or floating interest rate, called a coupon, on a half-yearly basis. The Public Debt Office (PDO) of the RBI acts as the registry and depository for G-Secs. The Government Securities Act, 2006 provides for holding G-Secs in dematerialised form, such as a Bond Ledger Account or a Constituents' Subsidiary General Ledger Account, and includes provisions like the nomination facility under Section 9.
G-Secs connect directly to the RBI's monetary policy and the Clearing Corporation of India Ltd. (CCIL), which acts as the Central Counter Party for guaranteed settlement. A significant recent change is the government's reform push, effective April 1, 2026, which removed both withholding and capital gains taxes for foreign investors on eligible G-Secs to attract global capital. This reform, along with the expansion of the Fully Accessible Route (FAR) to include new 15-year, 30-year, and 40-year securities, aims to deepen the Indian bond market and increase foreign participation.