Delhi Chief Minister Arvind Kejriwal has dared the Election Commission to give his Aam Aadmi Party access to one of its electronic voting machines or EVMs to prove that it can be "rigged in 90 seconds" after AAP legislator Saurabh Bharadwaj gave a half-hour live demo in the Delhi Assembly today. Mr Bharadwaj used a machine that AAP said was a prototype built by IIT alumni and tested by experts.