Officials at the ECI, however, are not convinced by the Congress’ theory of the dodgy pen provided by its RO. But in Rajya Sabha polls, an authorised agent of every political party can see the party votes before they are cast. In the case of Haryana RS polls, Nandal told this reporter that the pen was provided by Haryana CEO Vijay Singh Dahiya. But during counting, when compared to the other ballot papers, the difference in colour on these 12 votes was evident,” Nandal said. This pen can be procured locally by the RO or the Chief Electoral Officer (CEO) of the state concerned.
Source: Indian Express June 12, 2016 22:28 UTC