In order to be a candidate for promotion, one shall be a permanent teacher having completed the service period of five academic years in the post of the concerned class.  Provided that in any of the following circumstances, no teacher  shall be allowed to become a candidate for promotion.
(a) If suspended, during the period of suspension,
(b) If promotion is suspended, during the period of suspension,
(c) If decreased to the lower rank, for a period of two  years from the date of demotion,
(d) If increment in salary (grade) is suspended, for a  period of one year from the date of suspension.