The speedy development of electronics & communication technologies over a couple of decades has revolutionized both business and individual practices. The worldwide outburst of electronic commerce and the developments in the computer and telecommunication sector are swiftly changing the availability of information and services. Various documents are authenticated electronically. Similarly, digital evidence has transformed itself as a magical window that could see the past and in the mind of the criminal through the recovery of the electronic data. This article summarizes the concept of Digital Signature, digital evidence its relevance, admissibility and types.