hello, 
         Pavan Kumar thanks for contact us . There are various good engineering colleges for B.Tech in Allahabad . We suggest few colleges list is mention below .

Indian Institute of Information Technology, Allahabad
B.TECH, 4 Year (Fee: Rs. 77,500 /Yr.)

Warner School of Food & Dairy Technology
B.TECH, 4 Year

B.B.S. College of Engineering and Technology

United College of Engineering and Management

Motilal Nehru National Institute of Technology, Allahabad

Also, Visit our website and shortlist the few colleges at.
link - https://www.allschoolscolleges.com/engineering-colleges-in-allahabad