To Dr. Majumdar,
Yes, I agree. I pay respect to your level of understanding of the essence of CAS. Since he has already got financial benefits on completion of 8 and 16 years as per CAS there is no question of reversal to GP 4100 which is coherent to the first original promotional post. That promotion was due to him for years. Now he will be getting the post (and status) only and not the attached scale as the scale was granted to him on completion of 8 yrs of regular service.