The correct option is C Ministry of Drinking Water and Sanitation
The Union Ministry of Drinking Water and Sanitation (MDWS) has bagged the award for best implementation of E-office on March 14, 2018. E-Office is one of the Mission-mode Projects under the Digital India programme. The e-Office solution enables core operations of the Government at all levels to be performed in a paper-less environment, including the E-leave,E-tour,Knowledge Management, Notice Board, Download Forms, Inventory Control etc. In the MDWS, the entire e-office suite was implemented in December 2014 and since then it is being used by all stake holders in the Ministry. All the files in the Ministry are e-files and these have been successfully handled though this system for over 3 years now, when the transition to electronic mode first took place.