Please use full and explanatory title for topic, not just two words. it has been corrected.
If you are not working on contract basis, then file a application to your director and ministry. In my view If you are on permanent post, you are entitled to 4200 grade pay already. Ask for compensation for past loss also.
You and other AYUSH ccras permanent pharmacists should unite and file your grievance with this proof http://finmin.nic.in/6cpc/Rev_Pay_stru_Pharma_Fast_track_Comm.pdf
Be active for your salary increase and you will get it, because 4200 grade pay is now standard for all pharmacist under central government departments.