Section 110(3) in The Delhi School Education Rules, 1973
(3)Notwithstanding anything contained in sub-rule (1) and sub-rule (2) where a teacher, Principal or Vice Principal has obtained National or State Award for rendering meritorious service as a teacher, Principal or Vice Principal or where he has received both the National and Slate Awards as aforesaid, the period of service of such teacher. Principal or Vice Principal may be extended by such period as the Administrator may, by general or special order, specify in this behalf.
