Regex for UPSC roll number
7-digit UPSC Civil Services examination roll number.
The UPSC roll number regex is ^\d{7}$ — copy it below, or open it in the explainer for a token-by-token breakdown.
The pattern
What it matches
12345677891234
What it doesn't match
12345612345678ABC4567
Notes & gotchas
UPSC issues 7-digit roll numbers for the Civil Services Preliminary, Mains, and other UPSC examinations. Used to download admit cards and check results on upsc.gov.in.
Code in your language
Use the explainer's Code tab to generate ready-to-paste snippets in JavaScript, Python, Java, .NET, Go, Ruby, and PHP for this pattern.
Open in explainer →Token-by-token breakdown
Every part of the pattern, left to right:
| Token | Meaning |
|---|---|
^ | start of string (or line in multiline mode) |
\d{7} | exactly 7 times: digit (0–9) |
$ | end of string (or line in multiline mode) |
About this pattern
India-specific identifiers are governed by various authorities (UIDAI for Aadhaar, Income Tax Dept for PAN, RBI for IFSC, GSTN for GSTIN, etc.). Regex confirms format; for definitive validation, integrate with the issuing authority's verification API.
Quick usage in different languages
This exact pattern — with the correct escaping and idioms for each language:
- JavaScript:
/^\d{7}$/.test(value) - Python:
re.match(r"^\d{7}$", value) - Java:
Pattern.compile("^\\d{7}$").matcher(value).matches() - C# / .NET:
Regex.IsMatch(value, @"^\d{7}$") - Go:
regexp.MustCompile(`^\d{7}$`).MatchString(value) - Ruby:
/^\d{7}$/.match?(value) - PHP:
preg_match('~^\d{7}$~', $value)
The explainer’s Code tab regenerates these for any pattern you paste, and the downloadable cheat sheet bundles the breakdown, all seven snippets, and the pitfalls below onto one printable page.
Common pitfalls
- Anchored to the whole string. This pattern uses ^ and $, so it requires the entire input to match. To find it inside a longer text, drop the anchors and use the global (g) flag.
- Escape it correctly per language. In Java and JavaScript strings each backslash must be doubled (\\d); in Python, Go, and C# use raw/verbatim strings so the backslashes survive.
- Validate beyond format. Matching the format doesn't guarantee the value is real. Confirm the upsc roll number against a source of truth (database, API, or checksum) where it matters.
Related patterns
More patterns in the India 🇮🇳 category:
- GATE enrollment ID
- SSC examination roll number
- JEE application number
- UGC-NET roll number
- NEET roll number
- LIC policy number
See also
Browse all 300 patterns in the library, or open this regex in the interactive explainer to see a token-by-token breakdown, test against custom input, and generate code in seven languages.
More India patterns: Browse the full library →