State Development Loans (SDLs)
SDLs are government bonds issued by individual states in India to raise money for development projects like roads, health, or education. Like central government bonds (G-Secs), SDLs are low-risk, fixed-return instruments — but with slightly higher yields in some cases.
Let's Learn How Do SDLs Work with an Example.
Step 1. An SDL is Announced:
The RBI announces a State Development Loan – Karnataka SDL 2027 (tenure of 3 years) with a coupon rate of 7% and a cut-off price of ₹102.
Step 2. You Place an Order:
You choose to invest — e.g., 100 units at cut-off price
- ₹10,200 (₹102 x 100) is blocked.
- This is the maximum you’ll pay; the actual price could be lower.
Step 3. Auction & Allotment:
What Happens After You Bid?
- Once bidding ends, a final price is decided (e.g., ₹101).
- You’re allotted 100 units at this final price.
- Since you had paid ₹10,200 in advance and only ₹10,100 is needed, ₹100 is refunded to your bank account.
- The allotted units are credited to your demat account automatically.
Step 4. What happens after allotment:
You Start Receiving Interest.
SDLs pay fixed interest twice a year. You earn on the face value (usually ₹100), not on your purchase price.
- Coupon Rate: 7% annually → 3.5% semi-annually
- Face Value : ₹100
- Tenure: 3 years (6 interest payouts)
0 – 6 Months | 3.50% | ₹350 |
6 – 12 Months | 3.50% | ₹350 |
1 – 1.5 Years | 3.50% | ₹350 |
1.5 – 2 Years | 3.50% | ₹350 |
2 – 2.5 Years | 3.50% | ₹350 |
2.5 – 3 Years | 3.50% | ₹350 |
Total Interest earning ₹2,100
The interest is credited to your bank account automatically every 6 months.
Step 5: What Happens at Maturity? (End of Year 3):
a. Principal Repaid:
You receive ₹10,000 (₹100 × 100 units), as bonds are redeemed at face value, not at your purchase price of ₹101.
b. Final Interest Credit:
The last ₹350 interest (if not already paid) is deposited into your bank account.
c. Your Total Returns:
- Total Invested: ₹10,100
- Interest Earned: ₹2,100
- Principal Returned: ₹10,000
- Net Earnings: ₹2,000
You don’t need to hold SDLs until maturity.
- Sell anytime on the exchange via your demat account
- Sale value will depend on market demand and prevailing interest rates
- You may receive more (premium) or less (discount) than what you paid
Tip: While early exit is allowed, SDLs prices can fluctuate, and liquidity may vary—so plan your holding period accordingly




