The Telecom Regulatory Authority of India (TRAI) has introduced new rules to tackle spam calls and unwanted commercial messages. Announced on September
18, 2026, the amendments bring AI-based detection into the regulatory framework, tighten checks on automated calls and give consumers a way to appeal if they are unhappy with how their spam complaints are handled.
The changes amend the Telecom Commercial Communications Customer Preference Regulations, 2018. TRAI had released the draft amendments for consultation on March 13, 2026. The regulator says the revised framework will help telecom companies identify suspected spammers earlier and take action against those misusing mobile numbers.
AI to detect spam calls, action after just 3 complaints
Telecom operators must use AI and machine learning systems to identify mobile numbers suspected of sending unwanted commercial communications. They must share this information with other operators.
Under the new rules, action can begin when three unique complaints are received within 10 days and the sender’s number is flagged by AI as suspected spam. The earlier complaint threshold was five.
If five or more numbers linked to one sender are flagged within 10 days, operators must investigate further. Action may include fresh KYC checks, physical verification, blocking outgoing services and disconnecting numbers in cases of repeated violations.
Automated and AI-generated calls face new rules
Companies using automated calling systems, including robocalls and AI-generated voices, must declare their use to telecom operators in advance. They must provide details of the numbers used for these calls.
Undeclared automated calls will be treated as unsolicited commercial communications. TRAI has introduced a termination charge of up to ₹0.05 per minute for such calls, with exemptions for designated regulated and authorised calls.
Spam complaint rejected? You can now appeal
Consumers who disagree with the resolution of a spam complaint can file an appeal within 15 days.
Appeals can be submitted through the TRAI DND app, telecom operators’ apps or portals, or by calling or sending an SMS to 1909.
TRAI has also restricted companies from sending marketing communications based on a customer’s enquiry beyond seven days. The original enquiry must be recorded in writing or through verifiable digital means.
Truecaller and other caller ID apps face new restrictions
Call management apps can no longer automatically block or label entire designated commercial numbering series, including 140xx, 1600xx and 1601xx, as spam.
These series are used for regulated promotional, service and transactional communications. Consumers can still block individual numbers on their own devices.
Apps that allow users to report spam must forward those reports to telecom operators’ designated digital platforms.
TRAI has also directed operators to suspend misused message headers or templates within six hours of detecting misuse. Telemarketers found responsible for such misuse face a one-year disconnection of their telecom resources and blacklisting.
