Greetings Makarand,
I understand you had configured the Application Profile, Usage, and Usage Profile as per the info here: Multiple Usage of Operational Tags - Work Clearance Management (PM-WCM) - SAP Library
What is your exact requirement that you want to cover through use of a BADI?
I believe you are looking for the BADI_WCM_OPWC and especially its PRINT_TAG_REUSE_CHECK and PRINT_TEST_TAG_REUSE_CHECK methods.
See http://www.wcm-it.com/cms/upload/downloads/en_funktionen_schutz/8102_Function_Enhancements_EN.pdf