Dear Swati,

     Both Techno India and IEM are good  colleges. But, I believe academically IEM fairs better. Also when it comes to ranking, IEM stood 1st among all private colleges and 3rd in West Bengal after IIT Kharagpur and NIT Durgapur in the National institution ranking framework (NIRF) organized by MHRD. 

Hope I could address your concern.

Wishing you all the best