Techno India Salt Lake Kolkata is a decent college but it is good only for branches like CSE, IT or ECE. Not many core companies visit in any of the colleges under WBUT. But the students of mechanical or electrical engineering get a job in IT companies most of the time. So if you are comfortable working in IT industry then Techno India will provide you ample opportunities but if you want a career in core sector then try to look for another college. 

All the very best