Prerequisites for using Digital Signature Certificates (DSC)


    For filing Declaration with DSC, the following 2 options may be used.

    Option-1 [For Internet Explorer]

  • Users must have “java 8 update 181 (32 bit)” version installed in their system. DSC does not work with other versions of java. User may download this file from the link http://www.oracle.com/technetwork/java/javase/downloads/jre8-downloads-2133155.html. The downloaded file should be installed.It may be noted that other versions of java may be required to be removed from the system. the Internet Explorer can be downloaded from the link https://www.microsoft.com/en-ca/download/internet-explorer.aspx. The file shall be downloaded as highlighted below.


  • Option-2 [For Mozilla Firefox]

  • Users must have “java 8 update 92 (32 bit)” version installed in their system. DSC does not work with other versions of java. User may download this file from the link http://www.oracle.com/technetwork/java/javase/downloads/java-archive-javase8-2177648.html. The downloaded file should be installed.It may be noted that other versions of java may be required to be removed from the system.DSC facility works in Mozilla Firefox version ESR (32 bit). Users may download and install this version on their system from the link https://ftp.mozilla.org/pub/firefox/releases/52.9.0esr/win32/gn/.The file shall be downloaded as highlighted below.



  • After installing java,user must add the site address "https://cwc.nacwc.nic.in/" in “control panel-> java-> security” under “exception site list”.

  • Uncheck the Check Box for Update Automatically under "control panel-> java-> Update".

  • User should register their DSC before digitally sign the declaration from the link “register your DSC here” given at top right corner on home screen after login.

  • You may require allowing java plug-in from your browser when prompted.

  • Please ensure that you register and sign with the same DSC to avoid error.