Towers Stand, Networks Fall: Why India's Telecom Resilience Must Be Built Around the System, Not the Mast

The Mast Survives; the Network Still Dies

The assessment's numbers are stark. In Assam, 83 per cent of 18,388 mapped telecom towers stand in very high cyclonic wind zones and 43 per cent in areas of high flood exposure. In Tamil Nadu, 57 per cent of 48,416 towers face high or very high wind risk, concentrated in Chennai, Chengalpattu and Tiruvallur.

Odisha matches Tamil Nadu on wind exposure, with 14 per cent of towers facing storm surges above six metres. But the report's most important finding is not about towers at all.

Where the

chain actually breaks The study found that networks can suffer severe outages even when towers remain standing. A tower is only one link in a chain:

• Power. When the grid fails, base stations survive only as long as their backup power lasts.
• Fuel. Backup generators need diesel, which must reach the site.
• Roads. Floods and landslides cut the access routes for fuel trucks and repair crews.
• Backhaul. The fibre or microwave links connecting towers to the core network can be severed. Overhead fibre is especially fragile in high winds. Cyclone Fani in Odisha in 2019 showed this in practice. Many towers survived the winds, yet only 4 of 204 base transceiver stations in Puri stayed operational, largely because of power grid failure. Across affected districts, 6,058 base transceiver stations went down for one to two weeks and the telecom sector lost an estimated 63.5 million dollars. So the weak link is not structural strength but functional dependence. A tower built to survive the strongest winds still goes silent if its generator floods or its fibre washes away.

Why this matters more now Telecom is no longer just a commercial service in disasters.

Early warnings travel over cell broadcast systems. Relief payments move through digital channels. Rescue coordination depends on phones. The report notes that 5G is expected to add 450 billion dollars to India's economy between 2023 and 2040. More of the state's disaster response now rides on the same networks that disasters disrupt.

What is

working There is real progress to credit. The Department of Telecommunications requires Intra-Circle Roaming for 15 days in affected areas, so users can connect to any available operator. The Cell Broadcast System supports mass emergency alerts.

CDRI itself, launched by India at the UN Climate Action Summit in 2019 and now with 72 members, is an instrument of Indian climate diplomacy focused on pre-emptive, risk-informed infrastructure.

The gap The gap lies in design and accountability.

Resilience is still largely assessed tower by tower, while failures happen across power, fuel, fibre and roads that sit under different agencies and companies. CDRI recommends combining physical protection with backup networks, reliable power and better coordination.

It also recommends parametric insurance, which pays out automatically when a disaster crosses set thresholds, to speed recovery. For GS3, the insight is that critical infrastructure resilience is a property of systems, not structures.

A strong mast without resilient power and fibre is like a fortified gate in a wall that has already fallen.