I want to do PHD from Nit Trichy so is there any entrance exam for The PHD if yes then please give me imp dates of Entrance?

As you are looking for the admission in Phd in NIT Trichy.

So here is the detail of the NIT TRichy.it offers following course
• M. Sc. (Physics)
• M. Tech. (Non Destructive Testing)
• Ph.D
• B. Tech

In NIT trichy the Department offers Ph.D Programme in the area of expertise of the faculty members.
Admission to the Programme is through entrance exam and interview. GATE/NET qualified candidates are preferred for admission to the research Programme.

Gate exam is conducted every year .
Tentative dates 2013
Online Application form : September 2013
Exam date: February 2014