TRAI DLT Rules for AI Calling in India: 2026 Guide

If your business calls leads, customers or patients — with a human telecaller or an AI voice agent — India's telecom rules decide which calls you can make, from which number, and to whom. The rules are set by TRAI (the Telecom Regulatory Authority of India) under the Telecom Commercial Communications Customer Preference Regulations, usually shortened to TCCCPR, and enforced through a blockchain-based system called DLT (Distributed Ledger Technology) that every telecom operator runs.

This guide explains, in plain language, what the TRAI DLT rules mean for AI calling in 2026, what changed with the February 2025 amendment, and a simple checklist you can follow before you switch on your first campaign. It is written for owners and managers, not lawyers — so treat it as a practical starting point, and confirm details with your telecom operator or legal advisor before running large promotional campaigns.

Why TRAI rules matter more for AI calling

An AI voice agent can dial hundreds of numbers an hour. That is its biggest strength — every new enquiry gets a call within minutes — but it also means a mistake scales fast. If you call the wrong list at the wrong time from the wrong number, complaints pile up quickly, and TRAI's rules now act on complaints much faster than before. Getting compliance right once, at setup, protects your numbers and your brand for every call after that.

The good news: most of what TRAI asks for is simply good practice. Call people who asked to hear from you, tell them who is calling, stop when they say stop, and keep promotional calls separate from service calls.

The three types of commercial calls

TRAI sorts business communication into categories, and the category decides the rules that apply:

Type	Example	Number series	Consent
Promotional	Offers, new project launches, "admissions open", upsell calls	140 series	Cannot go to people on DND for that category unless they gave explicit, recorded consent
Service	Renewal reminders, appointment reminders, follow-ups to an existing customer	160 series	Allowed for existing customers; they can opt out
Transactional	Order or COD confirmation, OTPs, alerts tied to something the customer just did	160 series	Tied to the customer's own action

One rule catches many businesses out: if a call mixes promotional content into a service or transactional call, the whole call is treated as promotional. So an order-confirmation call that ends with "and we also have a festive offer…" is a promotional call in TRAI's eyes.

What is DLT registration?

DLT is the registry where businesses (called Principal Entities) and telemarketers register with the telecom operators. Registration is done on an operator's DLT portal (Jio, Airtel, Vi or BSNL) and is shared across all of them. For businesses that send promotional communication, the usual steps are:

1. Register as a Principal Entity with your company details and documents (such as PAN, GST and an authorisation letter).
2. Register headers — the sender IDs or number series you will use.
3. Register content templates for the communication you send, so operators can check that what goes out matches what you declared.
4. Register consent templates where you rely on customer consent, so consent can be recorded and verified.
5. Link your telemarketer or calling provider, so calls made on your behalf are traced back to your registration.

Fees, documents and approval times differ between operators and change over time, so check the current requirements on the portal you choose.

What changed with the 2025 TCCCPR amendment

TRAI amended the TCCCPR on 12 February 2025 to tighten control of spam calls. The changes that matter most for a business running AI calls:

• Fixed number series. Promotional voice calls use the 140 series; service and transactional calls use the 160 series. Calling promotional lists from ordinary 10-digit mobile numbers is exactly what the rules are designed to stop.
• Auto-dialers and robocalls must be declared. Senders are expected to tell their telecom operator in advance if they use auto-dialers or automated calls. An AI voice agent that dials from a list falls in this bucket, so declare it.
• Faster action on complaints. Customers now have 7 days (earlier 3) to report an unwanted call, and the threshold for action against a sender dropped from 10 complaints in 7 days to 5 complaints in 10 days. A handful of angry recipients can now get a number disconnected.
• Easier opt-out. Customers must be able to opt out of promotional communication easily, and once someone opts out you should not ask them for consent again for a cooling-off period (90 days).
• Heavier penalties on operators that fail to act, which is why operators now enforce the rules strictly on businesses.

How AI calling fits inside the rules

AI calling is not banned in India. An AI voice agent is simply a smarter way to make the same calls a telecaller makes — so the same rules apply. In practice, the calls that are easiest to run compliantly are also the ones that convert best:

• Calling back your own enquiries. A person who filled your form, called your number or messaged you has asked to be contacted about that enquiry. Calling them quickly — about what they asked for — is the core use case.
• Service calls to existing customers. Appointment reminders, renewal reminders, COD confirmations and feedback calls.
• Inbound calls. When customers call you, TRAI's outbound rules on DND and number series do not come into play in the same way. An AI receptionist answering your business number is the lowest-risk way to start.

Cold-calling bought lists is where businesses get into trouble — with TRAI, and with conversion rates. It is also the one use we do not recommend.

Compliance checklist before your first AI campaign

• Decide whether each campaign is promotional, service or transactional — and keep the script inside that category.
• Complete DLT registration and use the correct number series for promotional lists.
• Declare automated or AI calling to your operator.
• Only call people who enquired or agreed to be contacted; keep a record of where each number came from.
• Scrub promotional lists against DND preferences.
• Have the agent say who is calling and why in the first few seconds.
• Respect calling hours — daytime only, and not on Sundays for promotional work unless you are sure it is allowed.
• Honour "don't call me" immediately, and never call that number again for promotion.
• Watch complaints and pause any campaign that starts drawing them.

How RANA AI helps you stay compliant

RANA AI is built for Indian businesses, so these guardrails are part of the product rather than an afterthought:

• Calling hours. RANA only dials inside the hours you set — 9 AM to 9 PM, Monday to Saturday, by default — and stops a campaign outside those hours.
• Automatic do-not-call list. When someone asks not to be called, their number is added to your do-not-call list automatically, and campaigns skip it.
• Honest introductions. We recommend every AI employee introduces itself as your assistant. Callers care most that someone picked up instantly, in their own language — Telugu, Hindi, Tamil and 8 more.
• Your own number and DLT help. Trials run on a shared Indian number. Growth and above get their own Indian number, and for promotional outbound lists we help you with DLT registration.
• Every call recorded and transcribed, so you can show what was said if a question ever comes up.

If you are still deciding whether AI calling is right for you, start with our complete guide to AI voice agents for Indian businesses. When you are ready, you can start a 14-day free trial with 100 minutes and build your first AI employee on inbound calls and your own enquiries — the compliant way to begin.

This article is general information, not legal advice. TRAI regulations are updated from time to time; check the latest TCCCPR text on trai.gov.in and your telecom operator's DLT portal before running promotional campaigns.