Add Indian UPI ID recognizer for NPCI payment compliance

[shauryaraghav]

Change Description

Adds a new recognizer for Indian UPI (Unified Payments Interface) IDs.

Presidio currently supports Indian PII like Aadhaar, PAN, GSTIN and
Passport but has no support for UPI IDs, which are widely used for
digital payments across India.

Two confidence levels:

• High (0.7): Matches known UPI handles like okicici, okhdfcbank, okaxis, paytm, ybl etc.
• Medium (0.4): Matches any valid username@bankhandle format

Issue reference

N/A - New feature addition

Checklist

• I have reviewed the contribution guidelines
• I have signed the CLA (if required)
• My code includes unit tests
• All unit tests and lint checks pass locally
• My PR contains documentation updates / additions if required

Testing

Added 8 unit tests covering:

• Valid UPI IDs with known handles
• Valid UPI IDs with unknown handles
• Invalid formats
• UPI IDs within sentences

All 8 tests pass.

Reference

https://www.npci.org.in/what-we-do/upi/product-overview

[shauryaraghav]

@microsoft-github-policy-service agree

[shauryaraghav]

@microsoft-github-policy-service agree

[Copilot]

Pull request overview

Adds a new India-specific predefined recognizer (InUpiRecognizer) for detecting UPI (Unified Payments Interface) IDs of the form username@handle, with a high-confidence regex for known bank/PSP handles (score 0.7) and a generic medium-confidence regex (score 0.4), plus context words and unit tests.

Changes:

• New InUpiRecognizer class with two regex patterns and UPI-related context words.
• Exported the new class from the India package __init__.py and the top-level predefined_recognizers/__init__.py.
• Added parametrized unit tests covering known handles, unknown handles, invalid inputs, and a sentence example.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 5 comments.

File	Description
presidio-analyzer/presidio_analyzer/predefined_recognizers/country_specific/india/in_upi_recognizer.py	New InUpiRecognizer with high/medium patterns and IN_UPI entity.
presidio-analyzer/presidio_analyzer/predefined_recognizers/country_specific/india/init.py	Exports InUpiRecognizer from the India package.
presidio-analyzer/presidio_analyzer/predefined_recognizers/init.py	Re-exports InUpiRecognizer from the top-level recognizers package.
presidio-analyzer/tests/test_in_upi_recognizer.py	Adds parametrized tests for known/unknown handles and invalid inputs.