I will enlist down the top Btech engineering colleges in Lucknow -

1. Institute of Engineering and Technology, Lucknow
2. Integral University, Lucknow
3. Babu Banarasi Das University, Lucknow
4. Amity University
5. Saroj Institute of technology

Refer to the website below for more detailed information about the same -

https://engineering.careers360.com/colleges/ranking/top-engineering-colleges-in-lucknow

Best wishes. Thank you.