The best university for B.Tech except IITs is Chandigarh University.

• Best NIRF Ranked Engineering College in Region
• Amongst Elite & Prestigious NAAC A+ Universities
• Rated AAA+ by India's only Education Magazine Career360
• Engineering 2.0 offered by Chandigarh University different from contemporary engineering programs offered by other universities and institutions
• Curriculum aligned with leading International Universities and Research Agencies.
• Core & Elective Subjects offered in Emerging Areas with input requirements from Industry.

Here are some of the colleges except IITs  which you can prefer.

DTU

NSIT

SRM Chennai

Birla Institute of technology

Amrita school of engineering Coimbatore

You can also check the colleges except IITs with given below link.

Top Engineering colleges

Good Luck!

Apart from IITs, you can consider NITs, IIITs and other national level government college like DTU, IIEST, PEC Chandigarh Etc.Below is the list of top colleges

Delhi Technological University, Delhi

Indian Institute of Engineering Science and Technology, Shibpur

National Institute of Technology, Warangal

National Institute of Technology, Tiruchirappalli

National Institute of Technology, Surathkal

National Institute of Technology, Calicut

Motilal Nehru National Institute of Technology, Allahabad

You can check all top national level government colleges by below link:

Top Engineering Government Colleges

Many private college/university are also very good in terms of placement and infrastructure, few are below-

Birla Institute of Technology and Science, Pilani

VIT University, Vellore

Manipal Institute of Technology, Manipal

Amrita School of Engineering, Coimbatore

SRM University, Chennai

Please go through with below link to check other top private colleges:

Top Engineering Private Colleges

I am assuming you are talking about NITs, GFTIs and private colleges/universities so below names are considerable -

NIT, Warangal

NIT, Trichy

NIT, Surathkal

NIT, Calicut

MNNIT, Allahabad

VNIT, Nagpur

SVNIT, Surat

NIT, Rourkela

NIT Durgapur

MANIT, Bhopal

Institute of Infrastructure, Technology, Research and Management-Ahmedabad

Institute of Technology, Guru Ghasidas Vishwavidyalaya, Bilaspur

J.K. Institute of Applied Physics & Technology, Department of Electronics & Communication, University of Allahabad- Allahabad

National Institute of Electronics and Information Technology, Aurangabad (Maharashtra)

Sant Longowal Institute of Engineering and Technology

Gurukula Kangri Vishwavidyalaya, Haridwar

School of Engineering, Tezpur University, Napaam, Tezpur

Shri Mata Vaishno Devi University, Katra, Jammu & Kashmir

Assam University, Silchar

Birla Institute of Technology and Science, Pilani

VIT University, Vellore

SRM University, Chennai

Manipal Institute of Technology, Manipal

Amrita School of Engineering, Coimbatore etc.

To know the complete details, you can go through the below link -

Top private colleges for Engineering

Hope this helps!!!