hi, ashok, welcome to this forum.
i have got your msg. you have asked, whether is there any G.O. for promotion of qualified Group – D employees to Group – C.
But unfortunately, there is as such no such kind of G.O. for qualified Gr. D employees. As usual the career advancement scheme for the employees who first appointed to a post in any of the revised scale no. 1 to 12 is applicable here.