To derive-
What are the laws that make Aadhaar esign admissible in court of law?
As per the Gazette Notification No. 2015 Jan -GSR 61(E) Electronic Signature or Electronic Authentication Technique and Procedure Rules, 2015. Aadhaar eSigns are recognized as an accepted method of secure electronic signatures as part of the Second Schedule of the Information Technology Act, 2000 (IT Act)