CPAO/IT&Tech/Revision(7th CPC)/19.Vol.III(E)/2017-18/147 14.11.2017 Office Memorandum Subject: Mandatory use of Digital Signature — Regarding. Reference is invited to this office 0M No.CPAO/lT&Tech/Revision(7th CPC)/19.Vol-lll/2016-17/37 dated 25.05.2017 followed by 0M No. CPAO/lT&Tech/Revision (7th CPC)/19.Vol-lll(B/E)/2016-17/127 dated-25.09.2017 on the above[…]