1d081462_Some_Clarifications___WBXPress__Clarifications
[Points of doubt] 3. How additional incremental benefit for continuous service of 10 years/20 years will be regulated? [Clarifications] 
Teachers and Non-Teaching Staff of the Government sponsored/Aided Institutions will the benefit of one additional increment in the revised pay-structure after completion of 10 years of continuous and satisfactory service and another one additional increment after 20 years of such service. The span of 10 years/20 years will be counted from the date of entry into service of an employee and it will be irrespective the post held by him during such period of service. To illustrate, an Assistant Teacher has got one additional increment after completion of 10 years of continuous and satisfactory service. Thereafter, he has been appointed as Headmaster with higher ‘grade pay’ in the Pay Band-4 when he has just completed 16 years of service. After completion of 20 years, Continuous and satisfactory service he will get one additional increment as per para-2 of Memo No.181-SE (B), dated 08.10.2009.
Pay Fixation of Teacher - Some Clarifications – WBXPress
Clarifications