Hello aspirant!!

The top Engineering Colleges in South India and Kolkata are as follows.

• IIT Madras
• IIT Kharagpur
• IIT Hyderabad
• NIT Warangal
• NIT Mangalore
• NIT Trichy
• NIT Mysore
• NIT Durgapur
• VIT, Vellore
• SRM Tamil Nadu
• BITS Pilani- Hyderabad Campus
• RV College of Engineering, Banglore
• Heritage Institute of Technology, Kolkata
• CBIT, Telangana
• Ramaiah Institute Of Technology, Bengaluru
• Mar Athanasius College of Engineering, Kothamangalam 
• GITAM University,Vizag
• Manipal Institute of Technology, Manipal
• TKM College of Engineering, Kollam 
• Vasavi, Telangana
• VEL Tech College, Chennai
• GITAM University, Hyderabad
• Rajagiri School of Engineering and Technology, Kochi
• SASTRA University, Thanjavur
• Amrita School of Engineering, Coimbatore

Hope this was helpful :)

Good Luck!!

Thank you. 

Hello,

In Kolkata some top private colleges include IEM,Heritage,etc.

In South India there many good private colleges.Some If them are Bits Hyderabad,Manipal,Vellore Institiute of Technology,SRM,etc.

Most them conduct their own entrance exam while for getting into IEM,Heritage you should clear wbjee.

Getting into these colleges is also a tough competition nowadays as their placements are really good.

Best Wishes