Compare Holy Mary Institute of Technology and Science B.Tech. in Mechanical Engineering and PSN College of Engineering and Technology B.E. in Mechanical Engineering course on the basis of their Fees, Placements, Cut Off, Reviews, Seats, Courses and other details. Holy Mary Institute of Technology and Science B.Tech. in Mechanical Engineering course is rated 3.4 out of 5 by 16 genuine verified students while PSN College of Engineering and Technology same course is rated 2.8 out of 5 by 3 students at Shiksha. Explore Shiksha for detailed comparison on all course parameters and Download free information on B.Tech Admission details, Placement report, Eligibility criteria etc.