Validation of certain appointments Not withstanding 993 anything contained in the Education Act or in the Rules or Regulations framed thereunder. (a) graduate teacher, intermediate and matriculate teachers, physical education teachers and classical teachers and Hindi teachers of aided schools appointed by the managing authorities of such schools on ad hoc basic on or after the 1st December , 1976 but not later than the 31st December, 1984; (b) . . . (c) . . . who have continuous service as such teachers or lecturers for a period of at least one year without any break or with a break or breaks in one or more aided schools or Colleges and who are continuing as such teachers or whose services have been terminated after the 31st December ,1984 save for misconduct or. . . shall for all intents and purposes, be deemed to have been validly and regularly appointed, and no such appointment shall be challenged in any court of law merely on the ground that the appointment was made otherwise than in accordance with procedure laid down in the Education Act and the Rules and Regulations framed thereunder;. . . . .