Dear Mr Majumder,
aaponar wife-ke SSC DSE website-e registration korte hobe ebong website-er madhyomey apply korte hobey. Registration korar jannyo PF a/c no. prayojon.
Sorry, it was a typographic mistake (not SSC, but School Education Directorate). You have done right! Procedure for application is there in the SSC site. Pls see the link:
Good wishes!