Sample code for UID Authentication 
This is a github copy of code from UIDAI site

See full documentation
https://developer.uidai.gov.in/site/downloads

Contents: 

1. Sample java authentication client  (source: UID site) 

Released Oct 12, 2011
Uses Authentication Spec v1.5 rev1

For C implementation, please see 
https://github.com/GeoAmida/AadhaarAuth1.5

2. Test setup 

Parameters and relevant certificates