Electronics Corporation of India Ltd and Bharat Electronics Ltd have refused to disclose the names and contact details of the manufacturers and suppliers of various components of EVMs and VVPATs under the RTI Act citing "commercial confidence", according to RTI responses from the PSUs to an activist. Activist Venkatesh Nayak had filed two identical Right To Information applications with the ECIL and BEL, seeking the details of the manufacturers and suppliers of various components used in the assembling of the electronic voting machines (EVMs) and voter-verifiable paper audit trail (VVPATs). The VVPAT is an independent vote verification system which enables electors to see whether their votes have been cast correctly. The ECIL and the BEL, public sector undertakings under the Ministry of Defence, manufacture EVMs and VVPATs for the Election Commission. Nayak also sought a copy of the purchase orders for the components from both PSUs. "Information sought is in commercial confidence.