As you want National Dairy Research Institute (NDRI) Ph.D Admission and for the same asking for its phd entrance exam will be held on 15 may 2015

Here is all key dates of this exam
Sale of Information Bulletin by Post: 22nd Februar 2016 to 09th March 2016
Sale of Information Bulletin at NDRI Counter: 22nd February 2016 to 16th March 2016
Last Date for Receipt of Application Forms: 30th March 2016
Display of Roll Nos. on Website: 30th April 2016
Display of Details of Rejected Applications on Website: 30th April 2016
Date of Entrance Exam (at all three Centres i.e. Karnal, Bangalore & Kalyani): 15th May 2016

Eligibility
Master's degree from any university recognized by the Institute, in the relevant subject

Age Limit

Minimum age limit for PhD candidates shall be 21 years,

Selection process

Admission shall be made based on merit list prepared on the basis of marks obtained in the entrance examination

Address
National Dairy Research Institute (NDRI), Karnal
University Office: Dr. S.K. Kanawjia (Academic Co-ordinator), Email: skkanawjia@rediffmail.com, Phone No.: +91-184-2259008,