2.2.10 Government Securities (G-Secs)

Why they sit at the safe end of the spectrum

A government's ability to raise taxes, and in a domestic-currency context, its control over the currency in which it borrows, makes default meaningfully less likely than for a private company. This is why G-Secs are typically used as the risk-free reference point that every other investment is implicitly compared against.

Government securities (G-Secs) are bonds issued by the central government of India, and they carry the sovereign guarantee for repayment. They are considered free of credit risk in domestic currency terms because the Government of India has the power to tax and, in extremity, to create money through the central bank. This makes them the benchmark against which all other fixed-income instruments in India are priced. The 10-year G-Sec yield is the reference rate for the entire Indian bond market.

G-Secs are issued in various maturities ranging from 1 year to 40 years. Short-term G-Secs (91-day, 182-day and 364-day Treasury Bills) are issued at a discount to face value and redeemed at par, with the difference being the investor's return. Longer-term dated G-Secs pay a semi-annual coupon and are traded actively in the secondary market among banks, insurance companies, mutual funds and foreign portfolio investors.

What still moves their price

G-Secs are not immune to price movement even though they carry minimal default risk. Their prices still move with interest-rate changes, exactly as with any other bond: rates rise, prices of existing G-Secs fall, and vice versa. A long-maturity G-Sec can see meaningful price swings purely from rate movements, despite carrying essentially no credit risk.

While G-Secs carry no credit risk, they carry significant interest rate risk, particularly at longer maturities. A 30-year G-Sec with a duration of 15 or more years can lose 15% of its market value on a 1% rise in yields. This is why gilt funds (mutual funds that invest primarily in G-Secs) are among the most volatile debt fund categories despite holding the safest possible credit. The safety is in the certainty of repayment, not in the stability of the market price along the way.

The RBI conducts regular auctions to issue new G-Secs and uses the secondary market for monetary policy operations (Open Market Operations or OMOs) that influence yields. When the RBI buys G-Secs in the secondary market, it pushes prices up and yields down, and vice versa. These operations are one of the key channels through which monetary policy affects the broader economy.

How ordinary investors access them

Retail investors rarely buy individual G-Secs directly, though some direct-access platforms now exist. More commonly, exposure comes through gilt funds, which are mutual funds that invest specifically in government securities, or through the government-security portion held inside most debt mutual fund categories, including short and medium duration funds.