India Moves to Raise 5G Base-Station EMF Limit to 10 W/m², Bringing Norms Closer to Global Standards

India is moving to significantly revise the electromagnetic-field exposure norms governing 5G mobile infrastructure, with the permitted power-density limit for 5G base stations expected to increase from 5 watts per square metre to 10 watts per square metre from September 2026.

The change would bring India’s 5G network rules closer to international exposure standards and could allow telecom operators to improve coverage from existing sites while reducing the number of additional towers required for network expansion.

The reported revision represents the second major relaxation of India’s 5G electromagnetic-field norms in less than two years. The permitted power-density level was increased from 1 W/m² to 5 W/m² in early 2025. The latest change would double that level again to 10 W/m².

What the New 10 W/m² Limit Means

The regulation concerns radio-frequency electromagnetic-field exposure associated with mobile base stations and their antennas. It should not be confused with the Specific Absorption Rate, or SAR, limits that apply to mobile handsets used close to the human body.

Power density, expressed in watts per square metre, is one of the parameters used to determine how much radio-frequency electromagnetic energy may be present in an area accessible to the public.

Increasing the permissible limit gives mobile operators greater flexibility in configuring base-station transmission power while remaining within the prescribed regulatory ceiling.

For 5G networks, this can be particularly important because high-capacity networks increasingly use advanced antennas, beamforming and massive-MIMO technologies to direct radio signals towards users more efficiently.

Larger Coverage From Existing Sites

One of the most immediate consequences of the revised limit could be improved radio coverage from individual 5G sites.

Allowing higher permissible power density can help operators optimise transmission from an existing tower or rooftop installation, potentially allowing the signal to serve a wider area depending on spectrum band, antenna configuration, terrain and surrounding buildings.

That does not mean every 5G tower will automatically operate at the maximum permitted level. Actual transmission levels vary continuously according to network design, traffic demand, equipment configuration and the number and location of connected users.

Nevertheless, the higher regulatory ceiling provides operators with greater flexibility when engineering networks.

Potential Reduction in 5G Rollout Costs

The revision could also have significant financial implications for India’s telecom industry.

Mobile-network expansion requires expenditure not only on radio equipment but also on towers, rooftop sites, fibre connections, electricity, batteries, leases, maintenance and associated civil infrastructure.

If operators can obtain more effective coverage from each existing location, the number of additional sites needed to fill network gaps may fall in some areas.

This could reduce incremental capital expenditure as India’s 5G networks move from their initial large-scale rollout phase towards denser coverage, capacity enhancement and expansion into smaller towns and rural markets.

Vodafone Idea Could Be a Major Beneficiary

The change could be especially useful for Vodafone Idea, which is still expanding its 5G footprint and therefore has greater scope to incorporate the revised limits directly into future network planning.

A higher permissible EMF ceiling could allow the operator to optimise its rollout around fewer sites in some locations, improving the economics of coverage expansion at a time when capital efficiency remains crucial to its network strategy.

Reliance Jio and Bharti Airtel, which have already established much larger 5G footprints, could also benefit. Their advantage is likely to come primarily through optimisation of existing infrastructure and lower expenditure on additional sites required to strengthen coverage and capacity.

India’s EMF Rules Have Historically Been Conservative

India has historically maintained electromagnetic-field exposure norms that were more conservative than widely adopted international limits.

For many years, Indian regulations applied substantially lower base-station exposure levels than those recommended under international guidelines.

The government relaxed the rule for 5G networks in early 2025, raising the relevant permissible power density from 1 W/m² to 5 W/m². Even after that change, the level remained below the 10 W/m² benchmark widely applied internationally for the relevant frequency range.

The latest proposed revision would therefore mark a significant shift from India’s earlier precautionary approach towards greater alignment with international standards.

Why 5G Created Pressure for a Review

The technical architecture of 5G differs considerably from earlier generations of mobile communication.

Traditional cellular networks generally relied on sector antennas broadcasting coverage across relatively broad areas. Modern 5G deployments increasingly use massive MIMO, incorporating numerous antenna elements that can dynamically direct energy towards individual users.

Beamforming enables the radio system to concentrate a signal where it is required instead of radiating the same level uniformly in every direction.

This makes conventional assumptions about base-station power and exposure less straightforward and has led regulators around the world to develop measurement and compliance procedures specifically suited to 5G networks.

India’s Telecommunication Engineering Centre has similarly developed procedures for evaluating electromagnetic-field exposure from modern base stations.

A 10 W/m² Limit Does Not Mean Constant Public Exposure at That Level

An important distinction is that a regulatory exposure limit represents the maximum permissible level, not the normal level experienced by members of the public.

Actual radio-frequency exposure around mobile towers varies according to distance, antenna direction, height, buildings, terrain, network traffic and transmission patterns.

Modern cellular antennas are normally installed above ground level and designed to direct their principal radio beams outward rather than directly downward beneath the tower.

In 5G networks, beamforming further makes exposure variable across both time and space as the system directs signals towards active users.

Compliance rules are intended to ensure that areas accessible to the general public remain within the prescribed limits.

What International Health Guidance Says

Electromagnetic-field standards remain a subject of considerable public interest, particularly whenever permissible limits are revised.

The World Health Organization states that no adverse health effect has so far been causally established from exposure to wireless technologies when radio-frequency exposure remains within internationally accepted guidelines. Tissue heating is regarded as the principal established biological mechanism associated with sufficiently high radio-frequency exposure.

For 5G specifically, international exposure guidelines are not technology-specific; instead, they cover radio-frequency electromagnetic fields across frequency ranges that include those used by 2G, 3G, 4G and 5G systems.

Research into long-term radio-frequency exposure continues, however, and regulators maintain measurement, compliance and monitoring requirements for telecommunications infrastructure.

Compliance Monitoring Remains Essential

Increasing the permissible ceiling does not remove the obligation of telecom operators to comply with electromagnetic-field regulations.

Base stations must continue to satisfy applicable exposure limits in publicly accessible areas, while telecom authorities retain mechanisms for certification, measurement and inspection.

India has established procedures under which base-station sites are assessed for compliance with EMF standards, with regulatory field units able to conduct measurements and investigate public complaints.

Effective enforcement will therefore remain an important part of the revised framework.

A Significant Change for India’s 5G Infrastructure

India has rapidly built one of the world’s largest 5G networks since commercial services began in 2022. The next phase will increasingly involve filling coverage gaps, improving indoor connectivity, increasing network capacity and expanding advanced services.

Against that background, moving the permissible 5G base-station power-density level to 10 W/m² could have implications extending beyond simple tower economics.

It could allow operators to obtain greater utilisation from existing infrastructure, improve the commercial viability of extending 5G coverage into lower-density areas and reduce the requirement for additional physical sites in certain network configurations.

The change would also represent a major regulatory transition for India, bringing its 5G EMF framework considerably closer to the international norms followed across numerous major telecommunications markets.

As of 29 August 2026, reports indicate that the revised limits are expected to take effect in September. Formal publication of the corresponding Department of Telecommunications notification or technical direction will provide the definitive regulatory details, including the precise frequency ranges and compliance procedures to which the revised limit applies.

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