Telecommunication Sector Playbook
This playbook covers the Telecommunication sector of the Indian stock market. Use it to understand how companies in this sector make money, what metrics matt...
Sector Overview
This playbook covers the Telecommunication sector of the Indian stock market. Use it to understand how companies in this sector make money, what metrics matter most, and how to value them.
What you will learn
- Business Model: Prepaid vs postpaid, data vs voice revenue, enterprise services
- ARPU & Subscriber Economics: ARPU trends, churn rates, market share, data consumption growth
- Spectrum & Capex: Spectrum auctions, 5G rollout costs, network sharing, fibre expansion
- Tower Infrastructure: Towercos, co-location revenue, tenancy ratios, fibre-to-tower
- Valuation: EV/EBITDA, EV/subscriber, DCF with terminal ARPU assumptions
Sub-industries in this sector
| Basic Industry | Playbook |
|---|---|
| Other Telecom Services | View playbook |
| Telecom - Cellular & Fixed line services | View playbook |
| Telecom - Equipment & Accessories | View playbook |
| Telecom - Infrastructure | View playbook |
How to use this playbook
Start with the Business Model lesson to understand how companies in this sector generate revenue. Then move through metrics, risks, and valuation in sequence. Each lesson builds on the previous one.
1. Telecommunication — Business Model
What you will learn
- The Indian telecom industry structure: from 12 players to effectively 3
- Revenue streams: mobile (prepaid/postpaid), broadband, enterprise, digital services
- How Jio's entry restructured the entire industry's economics
- The operator P&L: why EBITDA margins are 50%+ but free cash flow is often negative
- Network effects and switching costs that create the moat
Industry structure — oligopoly after consolidation
The consolidation story (2016 → 2024)
| Period | Players | Event | Impact |
|---|---|---|---|
| Pre-Jio (2015) | 12 operators | Fragmented market | Intense competition, low margins |
| Jio launch (Sep 2016) | 12 → 10 | Free data for 6 months | Industry ARPU crashed from ₹130 to ₹80 |
| 2017-2019 | 10 → 5 | Mergers + exits (Aircel, Tata Tele, Telenor) | Debt-laden players wiped out |
| 2020-2022 | 5 → 3 effective | Vi financially stressed, BSNL moribund | Duopoly (Jio + Airtel) emerges |
| 2024+ | 3 effective | Tariff hikes begin (July 2024: 15-25%) | Industry repair begins |
Revenue streams
Mobile services (75-80% of revenue)
| Segment | Subscribers | Revenue/Sub | Characteristics |
|---|---|---|---|
| Prepaid | ~95% (1.05 Bn subs) | ₹150-200/month ARPU | Recharge-based, churn-prone |
| Postpaid | ~5% (55 Mn subs) | ₹500-700/month ARPU | Bill-based, sticky, premium |
Revenue mix by operator (FY24)
| Revenue Stream | Jio | Airtel India | Vi |
|---|---|---|---|
| Mobile services | 85% | 72% | 90% |
| Home broadband (FTTH) | 7% | 8% | 1% |
| Enterprise/B2B | 5% | 15% | 6% |
| Digital services (content, cloud) | 3% | 5% | 3% |
Airtel's diversification advantage
Airtel has the most diversified revenue: India mobile + Africa (30% of consolidated), enterprise (~15%), DTH, broadband. This diversification provides stability and premium valuation.
The telecom P&L — deceptively profitable
Why high EBITDA ≠ high profit
| Cost Layer | Jio | Airtel India | Vi |
|---|---|---|---|
| EBITDA margin | 53% | 52% | 42% |
| Depreciation/Amortization | 25% | 22% | 28% |
| Interest cost | 8% | 12% | 20% |
| Net margin | 18-20% | 15-17% | Negative |
The gap between EBITDA (50%+) and net profit (15-20%) is consumed by:
- Spectrum amortization: Spectrum purchased in auctions amortized over 20 years
- Network depreciation: Massive capex on towers, fiber, 5G equipment
- Interest on spectrum debt: Deferred spectrum payments (20-year EMIs to government)
Operating leverage — the telecom superpower
Telecom has extreme operating leverage: once the network is built, each additional subscriber costs almost nothing to serve.
| Metric | Implication |
|---|---|
| Marginal cost per subscriber | Near zero (network already exists) |
| Fixed cost base | 70%+ of total costs are fixed (towers, spectrum, fiber) |
| ARPU increase of ₹10 | Flows almost entirely to EBITDA → massive margin expansion |
| Operating leverage ratio | 2.5-3x (1% revenue growth → 2.5-3% EBITDA growth) |
Example: Jio's July 2024 tariff hike of ~15% on a base of 48 Cr subscribers = ~₹12,000 Cr annualized revenue increase with virtually zero incremental cost. That's 100% flow-through to EBITDA.
Competitive dynamics — Jio vs Airtel
| Parameter | Jio | Airtel |
|---|---|---|
| Network architecture | Greenfield 4G/5G (no legacy 2G/3G) | Upgraded legacy + 5G overlay |
| Spectrum holding (MHz) | ~2,400 MHz (across bands) | ~2,100 MHz |
| Cost structure | Lower (no legacy, all-IP network) | Higher (maintains 2G/3G too) |
| ARPU (Q4FY24) | ₹182 | ₹211 |
| Subscriber quality | Mass market (lower ARPU, higher volume) | Premium skew (higher ARPU, lower churn) |
| Home broadband | JioFiber (12M+ subs) | Airtel Xstream (7M+ subs) |
| Enterprise | Nascent (Jio Business) | Established (Airtel Business) |
| Africa presence | None | Airtel Africa (~15% of EV) |
| Parent support | Reliance (unlimited capital) | Independent (capital discipline) |
Indian context
🗣️
"Indian telecom mein sirf 2 real players hain — Jio aur Airtel. Vi survive karega ya nahi, yeh bada question hai. Lekin industry ke liye important yeh hai ki ab 3 saal se tariff repair ho raha hai. ARPU ₹180 se ₹300 jaana hai — yeh revenue growth ka sabse clear path hai bina subscriber growth ke."
✅ Checklist
- ○I understand India's telecom oligopoly (3 players, effectively 2 profitable ones)
- ○I can break down revenue by segment (mobile prepaid/postpaid, broadband, enterprise)
- ○I understand why 50%+ EBITDA margin doesn't mean high profitability (spectrum + depreciation)
- ○I recognize operating leverage as the key profit driver (ARPU hike → 100% EBITDA flow-through)
- ○I track competitive positioning (Jio = mass market volume, Airtel = premium ARPU + diversification)
Key takeaway
Indian telecom is now a stable oligopoly with 50%+ EBITDA margins and extreme operating leverage. The key investment thesis isn't subscriber growth (market is saturated at 1.15 Bn subs) — it's ARPU growth through tariff hikes. Every ₹10 ARPU increase on 45-48 Cr subs = ₹5,000-6,000 Cr annualized EBITDA gain at zero incremental cost. The sector's economics are improving quarter by quarter.
2. Telecommunication — ARPU & Subscriber Economics
ARPU (Average Revenue Per User) — the single most important telecom metric How to track ARPU drivers: tariff hikes, mix upgrades, data monetization Subscribe...
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3. Telecommunication — Spectrum & Capex
What spectrum is and why it's the most expensive input for a telco How Indian spectrum auctions work (and their financial impact) The 5G rollout: costs, prog...
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4. Telecommunication — Tower Infrastructure
The tower infrastructure business model — recurring rental revenue Tenancy ratio: the key profitability metric for towercos Indus Towers vs Jio's captive mod...
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5. Telecommunication — Valuation
Why EV/EBITDA (not P/E) is the primary telecom valuation metric EV/subscriber: what a telco's customer base is worth How to run a DCF with ARPU assumptions a...
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