The Election Commission’s decision to deploy the Voter Verifiable Paper Audit Trail system for all the constituencies in the Gujarat Assembly elections is questionable. This will be the first time VVPAT will be used on a State-wide basis. A costly but useful complement to the Electronic Voting Machine, and the paper trail allows for an audit of the election results by the EC in a select and randomised number of constituencies. 

What could be the possible reason for introduction of VVPAT?