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How to interpret SDL, T-bill, and G-secs names or symbols?

The SDL, T-bill, and G-secs names or symbols are a unique combination of numbers and alphabets that provide information about them.

Example scenario

  • SDL - 709UP30-SG

    709: 7.09% annualised interest
    UP: Uttar Pradesh
    30: 2030 (Year of maturity)
    SG: State government

  • T-bill - 364D221222-TB

    364D: Tenure, 364 days
    221222: 22nd December 2022 (Maturity date)
    TB: Treasury bill

  • G-sec - 522GS2025-GS

    522: 5.22% annualised interest
    GS: Government security
    2025: Year of maturity
    GS: Government security

To read more about G-secs visit