Why Credit Rating Matters for Capital Market Instruments

In the capital markets, a credit rating is not merely a helpful reference point the way it often is in bank lending — for many instruments and many categories of institutional investors, it is a binding regulatory prerequisite that determines whether an instrument can be issued, listed, or purchased at all.

The Structural Difference Between Bank Lending and Capital Market Financing

When a company borrows from a bank, the bank conducts its own direct, ongoing credit appraisal, discussed at length in the previous pillar of this content series, supplemented by an external rating as one input among several. When a company instead raises funds through the capital markets — issuing bonds, debentures, or commercial paper to a wide, often anonymous or semi-anonymous base of investors — no single investor typically has the resources, access, or mandate to conduct the kind of deep, bespoke due diligence a bank would perform for a bilateral loan. Capital markets rely instead on standardised, publicly available information, disclosed by the issuer and independently assessed by SEBI-registered credit rating agencies, to allow a broad and diverse investor base to make reasonably informed decisions efficiently.

This structural difference is precisely why credit rating occupies such a central, and in many cases legally mandated, role in capital market transactions in a way that goes well beyond its role in bank lending. Regulators overseeing different categories of capital market participants — SEBI for the securities markets broadly, IRDAI for insurance companies, PFRDA and various pension and provident fund frameworks for retirement savings vehicles — have each built credit rating into their own regulatory frameworks as a key tool for protecting the ultimate investors and beneficiaries these institutions serve.

Where Rating Is a Regulatory Requirement Rather Than a Choice

Several capital market activities directly require a current, valid credit rating as a precondition — issuing commercial paper, for instance, generally requires a minimum rating from a SEBI-registered credit rating agency under the applicable RBI framework governing commercial paper issuance, discussed in more detail in the dedicated commercial paper article elsewhere in this pillar; public issues of non-convertible debentures are subject to SEBI's disclosure and rating requirements under its regulations governing the issue and listing of non-convertible securities; and many institutional investors are themselves restricted by their own regulators from investing in debt instruments below specified minimum rating thresholds, discussed in the dedicated articles on mutual fund, insurance, and pension fund investment eligibility elsewhere in this pillar.

This means that, for a company planning to access the capital markets in almost any form, obtaining and maintaining a current credit rating is generally not an optional, purely commercial decision the way it can sometimes be framed in the context of bank lending alone — it is very often a genuine legal and practical precondition for market access.

Rating as the Primary Signal for a Dispersed Investor Base

Beyond the specific regulatory requirements, credit rating serves a broader informational function in capital markets that is qualitatively different from its role in bank lending. A bond issued to hundreds or thousands of individual and institutional investors cannot realistically be evaluated through individual, bilateral due diligence by each investor — the rating, together with the issuer's disclosed financial statements and offer documentation, becomes the primary, efficiently accessible signal the market relies on collectively. This is part of why rating actions on listed or widely held debt instruments tend to move market pricing more immediately and more visibly than a comparable rating action affecting a purely bank-financed borrower, whose lenders may already have substantial independent information of their own.

How This Pillar Is Organised

The articles that follow work through the specific instruments most relevant to Indian companies accessing the capital markets — non-convertible debentures, commercial paper, public issues versus private placements, structured finance, perpetual and green bonds — and the specific regulatory frameworks governing how different categories of institutional investors are permitted to use ratings in their own investment decisions. Companies considering a capital markets fundraise for the first time, or a promoter or CFO evaluating whether to expand beyond a purely bank-financed capital structure, will generally find it useful to read this pillar in conjunction with the corresponding articles in the fundraising-focused and financial-planning-focused pillars of this content series.

Illustrative Example

Consider a hypothetical mid-sized renewable energy company that has, until now, financed itself entirely through bank term loans and working capital facilities, evaluating for the first time whether to raise funds through a non-convertible debenture issue to diversify its funding sources and potentially access more competitive long-term pricing. Early in this evaluation, the company's finance team discovers that a credit rating is not merely advisable but a firm regulatory precondition for the specific issuance route it is considering, and that the rating category it is likely to achieve will directly determine which categories of institutional investors — certain mutual fund schemes, insurance companies, provident fund trusts — are even permitted to consider participating in the issue under their own respective regulatory investment norms. This realisation reshapes the company's entire planning timeline, since obtaining the rating, and understanding realistically which rating category the company is likely to achieve, becomes one of the very first steps in the process rather than an afterthought — a sequencing point covered in more detail across the individual instrument-specific articles later in this pillar.

Frequently Asked Questions

Can a company issue bonds in India without any credit rating at all?

For most public and many privately placed debt issuances, a current credit rating is a regulatory requirement under SEBI's applicable regulations, though the specific requirement can vary by instrument type and issuance route, so this should always be confirmed for the specific instrument being considered.

Does a company need a different rating for capital market instruments than for bank facilities?

Not necessarily a different rating in principle, since rating agencies generally assess the issuer's overall creditworthiness, but companies often obtain a specific instrument rating for a particular bond or debenture issue, which reflects both the issuer's general credit strength and the specific structure and terms of that instrument.

Is a credit rating for a bond issue a one-time requirement, or does it continue?

It continues — rated capital market instruments are subject to ongoing surveillance for as long as they remain outstanding, similar in principle to the surveillance process for bank-facility ratings discussed in the surveillance-focused pillar of this content series, and companies should plan for this ongoing commitment rather than treating the rating as a one-time exercise.

Do all capital market investors rely on the same rating in the same way?

No — different categories of institutional investors, such as mutual funds, insurers, and pension funds, are governed by their own distinct regulatory investment norms that reference credit ratings differently, discussed in the dedicated articles on each investor category elsewhere in this pillar.

Talk to FinMen Advisors — for help preparing for a rating exercise, write to marketing@finmen.in or call +91 77387 14680.

Disclaimer: This article is intended for general informational and educational purposes only and does not constitute financial, credit, investment, or legal advice. Credit ratings are assigned solely by SEBI-registered Credit Rating Agencies (such as CRISIL, ICRA, CARE Ratings, India Ratings, Brickwork, Acuite, and Infomerics) based on their own methodologies, policies, and the information available to them at the time of assessment. FinMen Advisors provides preparatory and advisory support to companies undergoing a rating exercise and does not issue, influence, or guarantee any rating outcome. Readers should exercise independent judgement and consult qualified professionals before making business or financial decisions.