By circular dated 27 August 2026, the IRDAI has permitted insurers to invest in the Onshore Rupee Bonds — branded Maharajah INR Bonds — issued by the New Development Bank as part of "approved investments". NDB proposes to raise Rs 25,000 crore over a five-year period, with proceeds earmarked for general corporate purposes and for financing or onward lending towards sustainable development, sustainable infrastructure, and green and social projects in India.
Why Approved-Investment Status Is the Whole Point
The distinction sounds technical and is not. Approved investments and other investments sit in different buckets under Schedule III of the IRDAI (Actuarial, Finance and Investment Functions of Insurers) Regulations, 2024, with different category limits. Placing an instrument in the approved bucket is what makes it investable at scale for an insurer. The circular was issued under clause 12(6) of that Schedule, following a representation from NDB.
The permission carries five conditions. The bonds are governed by any norms laid down by the Government of India. Any public issue must be approved by SEBI. Insurers must comply with Section 27E of the Insurance Act, 1938, which restricts investment of policyholder funds outside India. The bonds must meet the rating criteria applicable to approved investments, with the proviso that where SEBI exempts a domestic rating because an equivalent international rating exists, that equivalent applies. And if the proceeds are invested in infrastructure sub-sectors notified under the Ministry of Finance's Harmonized Master List, the investment qualifies as infrastructure investment.
The Coding Is the Operational Detail
The regulator has assigned four category codes: EORB for NDB onshore rupee bonds as approved investments, IORB where they qualify as infrastructure-approved investments, and OORB and IOOB for the corresponding other-investments classifications.
For insurer investment and compliance teams, the code determines which limit the holding consumes, and the infrastructure classification is conditional rather than automatic. It turns on the use of proceeds, so the documentation has to establish that the specific tranche being bought funds Harmonized Master List sub-sectors. That is a diligence step, not a formality. Section 27E also deserves a compliance read before allocation: the bonds are onshore and rupee-denominated, but NDB is a multilateral institution and the section governs how policyholder funds may be placed outside India.
Why It Matters Beyond the Treasury Desk
Indian insurers hold long-duration liabilities and are structurally short of long-duration, highly rated assets. Every instrument that widens that supply improves their ability to match liabilities without reaching for credit risk. It also matters fiscally: sustained insurer demand for infrastructure paper is one of the channels through which infrastructure gets funded without the full cost landing on the budget.
The open question is pricing. Approval to invest is not appetite to invest. Whether these bonds clear against state development loans and comparable corporate infrastructure paper will determine if the Rs 25,000 crore programme finds real insurer demand or relies on other institutional buyers. Watch the first tranche's pricing and the insurer allocation in it.