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DCF Valuation Explained: How Discounted Cash Flow Works for Indian Companies
Lekha Editorial Team
CA-reviewed · Published
DCF valuation is simultaneously the most theoretically rigorous and most practically misused valuation method. Every investment banker claims to use it; most of the time what they're actually doing is reverse-engineering a number they want from DCF assumptions they can justify. Understanding how DCF actually works helps you interpret — and challenge — the valuations you receive.
The DCF Formula and Its Components
The DCF formula: Value = Σ (Free Cash Flow Year N / (1 + Discount Rate)^N) + Terminal Value
Free cash flow (FCF) is the cash generated by the business after all operating expenses and capital expenditure, before financing costs. For most Indian startups, FCF is negative in early years (you're spending more than you earn) and turns positive as revenue scale exceeds fixed cost base.
The discount rate reflects the risk of not receiving the projected cash flows. For Indian startups, this is typically 20–35% (much higher than the 8–12% used for mature businesses), because there's significant uncertainty about whether the company will achieve its projections. The discount rate can be estimated using CAPM (Capital Asset Pricing Model) with a risk-free rate (10-year Indian government bond yield, approximately 7% in 2024), an equity risk premium, and company-specific risk factors.
The terminal value captures all value beyond the explicit projection period (typically 5 years). It's calculated as: (Year 5 FCF × (1 + terminal growth rate)) / (discount rate - terminal growth rate). For Indian startups, a terminal growth rate of 5–7% (in line with GDP growth plus sector premium) is defensible. For most startups, the terminal value represents 60–80% of the total DCF value.
Why DCF Produces a Range, Not a Number
The practical reality: changing discount rate from 25% to 30% reduces valuation by 25–35% depending on the projection period. Changing year-5 revenue projection by 20% changes valuation by approximately 20% in the same direction. These are large swings on small assumption changes.
This is why serious valuation work presents a sensitivity table: valuation at every combination of (low/base/high revenue assumption) × (low/base/high discount rate). A properly done DCF produces a ₹12–₹25 crore range, not a ₹18 crore point estimate. Investors know this; any single-point DCF without a sensitivity analysis deserves scrutiny.
For Rule 11UA compliance, the merchant banker must document their specific assumptions and methodology. The CBDT scrutinises merchant banker valuations that appear to have been reverse-engineered to justify a pre-determined investment price — using implausible growth rates or unrealistically low discount rates creates legal risk even if the certificate is signed by a qualified professional.
WACC vs Cost of Equity for Indian Startups
WACC (Weighted Average Cost of Capital) blends the cost of equity and the cost of debt based on capital structure. For all-equity startups (which is most early-stage Indian startups — they have no meaningful debt), WACC equals the cost of equity.
The cost of equity is typically estimated using CAPM: Cost of Equity = Risk-free rate + Beta × Market Risk Premium + Company-specific Risk Premium
For an Indian startup: Risk-free rate = 7% (10-year government bond), Beta = 1.5–2.5 (high growth tech companies), Market Risk Premium = 6–8% (India equity risk premium), Company-specific premium = 5–15% (size, stage, management, single-product risk). This gives a cost of equity of approximately 25–35% for most Indian seed-stage startups.
For Rule 11UA merchant banker certificates, CBDT expects a defensible WACC methodology. Merchant bankers who use implausibly low discount rates (10–15% for pre-revenue startups) create the same risk as inflated revenue projections — the valuation may be challenged even if the certificate is technically signed by a qualified professional.
Key takeaway
Understand DCF as a structured framework for thinking about value, not as a mechanical calculator that produces a correct answer. The quality of a DCF lies in the quality and defensibility of its assumptions, not in the precision of the final number.
Frequently asked questions
What is the difference between enterprise value and equity value in DCF?
Enterprise value (EV) is the total value of the business to all capital providers — debt holders and equity holders. Equity value is what remains for shareholders after subtracting net debt (debt minus cash) from enterprise value. A DCF that discounts free cash flows to the firm (FCFF) gives enterprise value. A DCF that discounts free cash flows to equity (FCFE, after debt service) gives equity value directly. For most Indian startups with no debt, enterprise value equals equity value. For leveraged companies, the distinction is material.
Why do Indian merchant bankers use 5-year projections for startup valuations?
Five years is the conventional projection period because: it's long enough to model the growth phase of most startups, short enough that projections remain somewhat plausible, and it aligns with typical VC investment horizons. Beyond year 5, the terminal value calculation takes over. Some merchant bankers use 3-year explicit projections for very early-stage companies where 5-year projections are considered too speculative. CBDT has not prescribed a specific projection period for Rule 11UA valuations.
Can I use international DCF models for Indian startup valuation?
You can use the same DCF framework, but with India-specific inputs. Key adjustments: use the Indian risk-free rate (Indian government bond yield, not US Treasury), use the India equity risk premium (typically 6–8%, higher than the US 5–6%), use INR cash flows rather than USD (don't mix currencies), and recognise that Indian exit multiples are generally lower than US multiples, which affects terminal value assumptions. Damodaran's country risk premium data (free online) provides India-specific equity risk premium estimates.
What is the Gordon Growth Model and how is it used in startup valuation?
The Gordon Growth Model (also called the Dividend Discount Model or terminal value formula) calculates terminal value as: Terminal Value = Final Year FCF × (1 + g) / (r - g), where g is the long-term growth rate and r is the discount rate. This is embedded in the DCF as the terminal value component. For startups, g is typically set at 4–7% (sustainable long-term growth, approximating GDP growth). If g is set too close to r, the terminal value becomes unrealistically large. A growth rate of 5% with a 25% discount rate gives a terminal value multiple of approximately 5x the final year FCF.
How does negative cash flow affect DCF valuation for early-stage startups?
Negative cash flows in the early years are discounted back at the discount rate and reduce the present value. However, since the negative FCFs in years 1–3 are smaller in absolute terms than the positive terminal value, the net DCF can still be positive and meaningful. The critical assumption is when the startup turns FCF-positive — a company that turns positive in year 3 has significantly higher DCF value than one that turns positive in year 6, because more of the positive cash flows fall within the explicit projection period rather than being captured in the terminal value estimate.