DM NO. 159, S. 2025. 42ND PRINCIPALS TRAINING AND DEVELOPMENT PROGRAM CUM NATIONAL BOARD CONFERENCE (PTDP-NBC) Posted on January 30, 2025 by Leave a comment DM NO. 159, S. 2025. 42ND PRINCIPALS TRAINING AND DEVELOPMENT PROGRAM CUM NATIONAL BOARD CONFERENCE (PTDP-NBC) Memorandum Numbered