As you are asking for Eligibility for PhD in engineering from Patna university, so on your demand here I am telling same for you

Eligibility For Ph.D in Engineering

For admission to the PhD Programme in Engineering Department, a candidate must satisfy one of the following criteria:
Candidates having M.Tech./M.E. degree in a Engineering/Technology, with a minimum CPI of 6.5 or 60% of marks.
Bachelor’s degree in Engineering/Technology in a relevant area with a minimum CPI of 6.5 or 60% of marks.
Master’s degree in Science in a relevant area with a minimum CPI of 6.5 or 60% of marks.

Key dates
Online application starts from 11 Apr 2016
Last date of online application 25 Apr 2016
Last date for receipt of completed application 02 May 2016
Written Test
Electrical Engg 24 May 2016
Comp Science Engg 25 May 2016
Chemistry 20 May 2016
Mechanical Engg 03 Jun 2016
Civil & Environmental Engg 26 May 2016
Visvesvaraya Ph.D 26 May 2016
Department of Materials Science
and Engineering 02 June 2016
Department of Humanities &
Social Sciences 26 May 2016

Address

Patna University
Ashok Rajpath, Near Patna College
Patna University Campus
Patna, Bihar 800005