Bharti Airtel has told the Telecom Regulatory Authority of India (TRAI) that it opposes a rule requiring operators to give the regulator 21 days' advance notice before offering 5G network slicing services, according to a report by Medianama.

The dispute centres on a licensing condition TRAI has proposed for network slicing, the 5G capability that lets an operator partition a single physical network into multiple virtual networks with distinct performance characteristics. Enterprises are the primary target market: slices can be engineered to guarantee latency, throughput or availability levels that a shared consumer network cannot promise.

At stake is how quickly Indian operators can convert their 5G investments into enterprise revenue. Airtel and Reliance Jio have both deployed 5G standalone architecture — the prerequisite for full network slicing — across the country, and both are under pressure to monetise that infrastructure beyond consumer broadband. Private network slices for factories, ports and utilities are among the most concrete monetisation paths available to them.

Airtel's objection to the 21-day notice rule is essentially a commercial one. A mandatory three-week gap between signing an enterprise customer and activating the service would, the operator argues, undercut the core value proposition of network slicing for business customers. Enterprises procuring connectivity for time-sensitive applications expect provisioning timelines measured in days, not weeks, and a fixed regulatory waiting period adds friction that competing technologies — private 5G networks using directly assigned spectrum, or fixed-line alternatives — do not carry.

The rule also sits awkwardly with the way enterprise contracts are negotiated. Large deals involving customised slices typically involve bespoke service-level agreements, and operators argue they already have commercial and contractual incentives to configure slices responsibly. A blanket advance-notice requirement treats every slice, from a simple guaranteed-bandwidth offering to a mission-critical industrial deployment, with the same regulatory overhead.

TRAI's position reflects a different set of concerns. The regulator has been working through how to fit network slicing into India's licensing framework, where telecom services are defined by category and each category carries specific obligations. Slicing blurs those boundaries: an operator could use a slice to deliver something that looks like a leased line, a virtual private network, or an entirely new class of service. Advance notice gives the regulator visibility into how the technology is being used and a window to intervene if a slice offering appears to circumvent licence terms or raise security concerns.

The 21-day requirement is part of a broader set of questions TRAI has been consulting on regarding 5G network slicing, including whether slices should be treated as a licensed service in their own right and what obligations should attach to them.

Airtel is not alone in flagging friction in the proposed framework, but its objection carries weight because it operates one of the world's largest 5G networks by subscriber base and has positioned enterprise connectivity as a growth pillar as consumer tariffs plateau.

The outcome of the consultation will shape the commercial timeline for slicing in one of the world's largest telecom markets. If TRAI relaxes or drops the notice requirement, Indian operators could move faster to sign enterprise slicing deals on their existing standalone 5G infrastructure; if it holds firm, operators will factor a three-week regulatory lead time into every private-network proposal they submit.