JKBOSE Class 12th Date Sheet Jammu Winter Zone Annual Private/Bi-Annual Session 2021-22. JKBOSE CLASS 12TH DATE SHEET FOR HIGHER SECONDARY SCHOOL EXAMINATION  Annual Private/Bi-Annual Session 2021-22 Jammu Province (Winter Zone). Download JKBOSE class 12th Date sheet  JKBOSE Class 10th Date Sheet Jammu Winter Zone.