You can opt for UEM Kolkata as it provides their own entrance to qualify for admission. To get aware of minimum eligibility criteria for admission to btech college in Kolkata visit here https://www.careers360.com/university/university-of-engineering-and-management-kolkata/courses?degree=2

List of all recommended colleges based on rankings nd placements for lateral entry in Kolkata shared below. 

• IEM Kolkata
• Netaji subhash engineering college 
• Heritage institute of technology 
• Bc roy engineering college 
• Rcc Institute of Information Technology 

All these havebene best acclaimedand haveverygood facilities to groom young talents. 

here i've posted some colllege which are offering b.tech for lateral entry,
1.Marine Engineering & Research Institute Kolkata
2.Institute of Engineering and Management Electronic complex, Kolkata. 
3.CIEM (Calcutta Institute of Engineering and Management) 
4.Gunamay Majumdar Institute of Science & Technology
5.Jadavpur University-Faculty of Engineering, Kolkata (JUFOE-K)

I Hope this information will be useful to you.

if you need additional information,let us know to help you.

Thank you!!!:)