Research programmes leading to the degree of Doctor of Philosophy ( Ph.D. ) are available in all academic departments of the Institute. While 89 new candidates were admitted to Ph.D. programmes, a total of 754 candidates are working for their Ph.D. degree in the session 2007-2008. The Ph.D. thesis is evaluated by the supervisor(s) and by two external examiners, one Indian and the other from abroad. If the examiners recommend acceptance of the thesis, a viva voce examination of the candidate is arranged at Roorkee. The recommendations of the Board of Examiners are considered by the Senate , which approves the award of Ph.D. degree to the candidate.