What Is a CNR Number? How to Find and Use It for Your Court Case

A CNR number (Case Number Record) is the unique 16-character identifier assigned to every case filed in an Indian district or high court since around 2013. It is the single fastest way to access your complete case history (parties, orders, next hearing, judge) in one search. You can find your CNR on the filing receipt, any case notice, or by party-name search on eCourtsIndia.com. For a deeper dive into how the code is put together and what each segment means, see our CNR number decoded complete guide.

What Does CNR Stand For, and When Was It Introduced?

CNR stands for Case Number Record. It was introduced by the e-Committee of the Supreme Court of India as part of the eCourts mission to digitise the judiciary, and rolled out nationally through the Case Information System (CIS) from around 2013. Every case filed in a district court or high court since then has a CNR. Supreme Court cases follow a related but distinct numbering scheme using diary numbers and SCIN prefixes.

The purpose is interoperability: before CNR, a case filed in the Karkardooma courts had no common identifier with a transfer in the Delhi High Court. With CNR, the same case is traceable across the entire judicial hierarchy, and tools like eCourtsIndia can pull its full history with one query. If you’re curious about how the whole framework came together, read what the eCourts system in India actually is.

How Is a CNR Number Structured?

A CNR has five parts packed into 16 characters. Using DLST01-000123-2023 as an example:

• DL: the state code (two letters). DL is Delhi; MH is Maharashtra; KA is Karnataka; UP is Uttar Pradesh. Each state and union territory has its own two-letter code.
• ST: the district code within that state.
• 01: the court-establishment/complex code.
• 000123: the case filing (serial) number within that establishment for that year.
• 2023: the year the case was filed.

So the layout is state (2) + district (2) + establishment (2) + filing number (6) + year (4) = 16. When you enter a CNR on eCourtsIndia, the system parses these segments, routes the query to the correct court backend, and returns a unified case page.

Where Can You Find Your CNR Number?

• Filing receipt: the slip handed over at the filing counter. CNR is printed at the top.
• Cause list: the CNR appears next to every listed case on the daily cause list of the court. Read our guide on how to read an Indian court cause list.
• Case notice or summons: any court notice you receive carries the CNR.
• Your advocate: every advocate maintains the CNR for their matters; just ask.
• eCourtsIndia party-name search: if you’ve lost every document, search by your name at ecourtsindia.com/search, narrow by state and year, and the CNR will be shown on the case page.

How Do You Search a Case Using a CNR Number?

1. Open ecourtsindia.com/search.
2. Paste the 16-character CNR. Don’t worry about dashes. Both DLST01-000123-2023 and DLST010001232023 work.
3. Press Search. The case page loads in under a second.
4. You’ll see petitioner, respondent, advocates, case stage, next hearing date, presiding judge, and every order ever passed, each downloadable as a PDF.

For High Court and District Court matters, the case page keeps getting richer: alongside the basics, eCourtsIndia now surfaces structured details such as the e-filing number and date, filing type, litigant type, and a fuller hearing history (plus interim-application and transfer records for district courts) on the case page itself, as these fields are rolled out across courts.

For a complete walk-through including party-name and FIR-number searches, see our sister guide: How to Check Your Court Case Status Online in India.

What If My CNR Number Doesn’t Work?

A failed CNR lookup almost always has one of these causes:

• Wrong format. CNRs are exactly 16 alphanumeric characters. Extra spaces, commas, or accidental zeros break the parser.
• Pre-2013 case. Matters filed before the CNR rollout may not have one. Use the old filing number + court + year, or party-name search instead.
• Case transferred. If a matter has been transferred to another court, the CNR may have been re-issued. Use litigant search to find the live CNR.
• Supreme Court case. The apex court uses a diary-number + SCIN scheme, not a district/HC-style CNR. Search on the Supreme Court filter instead.

Is a CNR Number the Same as a Case Number?

No, and confusing them costs time. A case number is the court-specific number assigned at registration (e.g. WP(C) 1234/2024 in the Delhi High Court). The same matter carries the court’s case number and a national CNR. The case number changes if the matter is transferred or consolidated; the CNR persists. For reliable lookups across the 17 crore+ (178 million+) case records on eCourtsIndia, and growing daily, the CNR is always the preferred input.

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Why the CNR Number Is the Passport of a Court Case

Every court case in India now has a 16 character CNR number. Think of it as the passport. Local case numbers change as a matter moves from trial court to High Court to Supreme Court, but the CNR stays constant. That consistency is the reason the eCourts platform can follow one dispute across five years and four levels of courts without losing the thread. For the working lawyer, the CNR is the single identifier that lets you bookmark a case once and find its status from any portal for as long as the matter is alive.

The design of the CNR is deliberate. Two letters encode the state, the next two the district, the next two the court establishment, the following six the case filing number, and the final four the filing year, sixteen characters in all. Once you know the structure you can look at a CNR and roughly describe where the case lives. This is extremely useful when reviewing bulk data, for example a list of sixty pending matters, because you can group them by court just by reading the CNR prefix. For a deep dive with worked examples, read our CNR number decoded guide.

How CNR Numbers Enable Research at Scale

Large scale research on Indian court data is only possible because the CNR exists. Academics studying pendency. Credit bureaus doing litigation checks. Background verification firms screening hires. Due diligence teams running M and A reviews. All of them benefit from a stable identifier that lets them stitch data from multiple portals into one view per case. Without the CNR, they would be solving the same matching problem over and over. With it, the plumbing is in place and they can focus on analysis.

For a litigant, this scale may feel abstract. But it matters. A fintech lender that does a clean litigation check before issuing a loan is a lender that trusts its own risk model. A corporate acquirer that runs a CNR based due diligence before signing is an acquirer who knows exactly what liabilities come with a target. Every time the CNR is used well downstream, the Indian judicial data layer does a small piece of its job of making the legal system predictable.

What Still Needs Work

The CNR system has a few rough edges. Older cases from before the rollout do not always have CNRs and need to be matched through local case numbers. Some tribunals operate outside the eCourts umbrella and do not use the CNR. Handwritten legacy registers in a few remote establishments still await digitisation. These are the patches being closed in the current phase of the eCourts programme. The direction of travel is clear and the CNR will become the canonical identifier for the overwhelming majority of Indian disputes within a few years. For a working understanding of the wider portal that issues these numbers, see our explainer on the eCourts system.

Frequently Asked Questions