Non compound increment at protected pay at entry level

Sir/ Madam, I was servicing as a Geologist at Geological Survey of India ( Ministry of Mines, Govt of India) for 4 years and 11 months before joining as an Assistant prof. at Central University of Punjab Bathinda. As my application was processed through proper channel with NOC recently my pay at Geological Survey of India was protected. I did not get any increment for procuring higher degree of Ph.D. at Geological Survey of India. I had applied for non-compound increment for Ph.D. degree at Central University of Punjab at my protected pay. In this regards, the university keep the Ph.D. increment withheld by citing they will take the consent from UGC. As the minimum qualification for Assistant Prof. is not Ph.D., I asked the university authority to sanction 3 non-compund increment at my protected pay for Ph.D. degree which I acquired during my service at GSI, the authority told me that there is no clear-cut rules for non compound Ph.D.increment if the pay of the employer from previous service is protected. In this regards, kindly inform me whether I am eligible for non-compund increment for procuring higher degree, Ph.D. on my protected pay. if not, why?