The workload for M.Tech Mechanical students is quite manageable at SVNIT.
In the first year of M.Tech, one has to complete the coursework and attend classes from 8:30 am to 5:40 pm. In the second year, one has to complete the dissertation work and Teaching Assistant Duty (which is for 8 hours per week). SVNIT offers five M.Tech specializations in the related fields. These are- Mechanical Engineering, CAD/CAM, Thermal System Design, Turbo Machines and Manufacturing Engineering. The workload varies from department to department.
One gets ample time to prepare for competitive exams as an M.Tech Mechanical student over here. Most people in M.Tech Mechanical do not attend classes regularly, and instead prepare for their entrance exams. So you need not worry on the attendance front.