1d081462_Some_Clarifications___WBXPress__Clarifications
[Points of doubt] 9. How pay will be fixed in the revised pay structure in the following cases:-(a) A School was a High School (V to X) before 01.01.2006 to 27.02.2009. How pay of the Headmaster will be fixed in such a case? [Clarifications] 
(a) The Headmaster of a High School was not entitled to any additional increment other then scale of pay of the post in the unrevised scale. If the School was upgraded to H.S. within the period 01.01.2006 to 27.02.2009, the Headmaster would be entitled to two additional increments from the date of such up gradation as per provisions of the unrevised scale of pay. When the said Headmaster would opt to come under the revised pay structure, his pay could have been fixed as per his option either from 01.01.2006 or from the date of up gradation of the school when he got two additional increments in the unrevised scale. In the first case, after fixation of his pay in the revised scale, he would be again entitled to get 3% increment and additional Grade Pay from the date of taking higher responsibility of the upgraded school. In the second case, he would be entitled to get his pay fixed in the revised pay-structure taking two additional increments in the unrevised scale and he would then get additional Grade Pay of the post of the Headmaster of H.S. School under the revised Pay Structure.
Pay Fixation of Teacher - Some Clarifications – WBXPress
Clarifications