Ankita, based on your previous question we are guessing this is for HAU. If you meant CCS Haryana Agricultural University, Hisar, it offers Ph.D in Physics and has a total intake of 2 seats. The eligibility criteria is that you should have completed your M.Sc Physics. Even those Candidates in their final year can apply for this programme. Admission to this programme is through an Entrance Examination, which is CET of CCSHAU. You can check the official notification at their official website: http://admissions.hau.ac.in/Online/Documents/AdmissionNotice-20200410.jpg . You can check the syllabus for the entrance exam at: http://admissions.hau.ac.in/Online/Documents/SYLLABUSPhD2018.pdf