Give it a try - Call up this number +91(040/080/022)39411020, enter the Access Pin as 3823 and follow on instructions you hear. Do remember to choose the option 7 for feedback.
Currently the system is implemented having only SASTRA SRC students' PWI account. Once I get hold of some Main Campus credentials, I'll implement the system for Main Campus respective features like Internal Marks, Attendance, Hostel Details, etc.
PS: Sorry Tamil Nadu number will be updated soon.