Dearness Allowance and Dearness Relief

I was working as Class 1 officer with UP State Medical College .On superannuation,I was selected and joined AIIMS Bhopal as regular employee against a post advertised through UPSC. My job at UP Govt Medical College was pensionable .I started getting my pension (Basic +DR) from UP Treasury,Allahabad.On joining AIIMS Bhopal,a central govt institute,I submitted my PPO (indicating my basic amount and payment of DR) issued by Allahabad Treasury at AIIMS Bhopal. My pay fixation at AIIMS Bhopal was done based upon my last salary drawn from Medical College Allahabad .However from the basic so fixed,for the purpose of calculating applicable DA,my basic amount of pension was reduced from the basic of AIIMS Bhopal. Also from the gross salary so calculated,the basic amount of pension was also deducted. In nutshell,the total amount of my pension(Basic+DR) was deducted from my normal salary of AIIMS Bhopal. I am now retired from AIIMS Bhopal but eligible for pension only from UP treasury.I have received a notice from Allahabad Treasury that DR paid by by them was not payable and should be returned to them. As I have not received DA from AIIMS Bhopal,my question is am I not eligible to get either DR or DA on the basic amount of Pension fixed by UP Govt/Treasury and if it so,may I please have the ruling for the same.