A data clean room is a secure environment where two parties — typically an advertiser and a platform — can run analysis on matched datasets without either party seeing the other's raw records. For CTV advertising in India, clean rooms are the emerging answer to a persistent problem: how do advertisers use their first-party data on walled-garden platforms without handing over their customer database?
Why clean rooms matter for CTV
India's major CTV platforms hold rich first-party data — subscriber demographics, content preferences, viewing history, payment data. Advertisers hold their own first-party data — CRM records, purchase history, loyalty programme members. The problem: neither party can share their raw data with the other. Privacy regulations (India's DPDPA, platform policy), competitive sensitivity, and trust barriers all prevent direct data exchange.
A data clean room enables:
- Audience matching: An advertiser uploads a hashed customer list. The platform matches against its user database. The output is a matched audience segment — no raw records are exchanged.
- Overlap analysis: How many of the advertiser's customers are also platform subscribers? Which content genres do they watch? This informs targeting and creative decisions.
- Attribution: Did customers who were exposed to the CTV campaign convert at a higher rate? Clean rooms can answer this by linking ad exposure logs to advertiser conversion data.
- Suppression: Exclude existing customers from acquisition campaigns — or target them with retention messaging instead.
Clean room options in India (2026)
Google Ads Data Hub
Google's clean room infrastructure supports YouTube CTV data. Advertisers can run queries on their YouTube campaign exposure data matched against their own data. Available to large advertisers working with Google's enterprise team. The most mature clean room option for CTV in India — YouTube is the most widely bought CTV platform.
Amazon Marketing Cloud
Amazon's clean room (AMC) covers Fire TV CTV exposure data and can be linked to Amazon.in purchase signals. Particularly powerful for brands with Amazon seller relationships — allows end-to-end attribution from CTV ad exposure to Amazon purchase. Available to Amazon DSP advertisers.
JioHotstar / Reliance clean room (emerging)
Reliance's advertising stack is developing clean room capabilities as part of its broader data and retail media strategy. Not publicly available as of 2026, but expected to expand through JioAds and Reliance Retail's data ecosystem.
Neutral clean rooms (LiveRamp, Habu, etc.)
Neutral clean room platforms allow advertisers to work across multiple publisher datasets in a standardised environment. LiveRamp's Safe Haven is the most international option with some India market presence. Coverage across India CTV platforms is limited — most India platforms have not yet integrated with neutral clean rooms.
DPDPA and clean room compliance
India's Digital Personal Data Protection Act 2023 requires that personal data processing — including matching and profiling — has appropriate consent from data subjects. Clean rooms reduce the risk of raw data exposure but do not automatically make data matching DPDPA-compliant. Advertisers using clean rooms in India should:
- Ensure their first-party data was collected with consent for advertising use
- Verify that the platform's subscriber data was collected with appropriate consent for matching
- Use hashed or pseudonymised identifiers (phone numbers, emails) rather than raw personal data in the matching process
- Maintain records of data processing activities as required under DPDPA
Who is ready to use clean rooms in India today
Clean room adoption for CTV in India is early-stage. The advertisers who can use them effectively in 2026:
- Large advertisers with clean, structured CRM data (BFSI, auto, telecom, large FMCG)
- Brands already running significant Amazon DSP spend (AMC is the most accessible clean room)
- YouTube-heavy advertisers working with Google enterprise teams
- Advertisers with dedicated data and analytics teams who can write clean room queries
For most mid-market advertisers in India, clean rooms remain an emerging capability rather than a current operating practice. The simpler immediate option — customer match on YouTube or Amazon — delivers much of the same value with less operational complexity.