One of my cousins graduated from NIT Trichy and having read online reviews of the alumni here are some things that you should know. 

• There are no special criteria for MCA students. It is the same as that of B.Tech and M.Tech
• Sometimes the required academic score is greater than 7 CGPA, but it depends on company policies.
• Your overall academic record can also be beneficial if considered, though it is not mandatory.
• A lot of the time almost full batches without any backlogs are eligible for placements.
• The placement percentage is 90 to 95%. Students are offered an average salary of INR 12 LPA.
• Top roles like software developer, software engineer, and data analyst are offered to the students by leading IT companies.

The top recruiting companies like Microsoft, Flipkart, DE Shaw, Amazon, Uber, JP Morgan, Morgan Stanley, Amdocs, CT Corp, etc. visit the NIT Trichy campus during their placements.