Hii...

As you mention your ts pgecet as  457 with this rank chances to get colleges like it OU and jntuh and other top colleges are very less  as most of these colleges seat are filled by GATE candidates and with your rank  chances are very less..

there are other some colleges where can you try:

• Methodist College of Engineering and Technology
• Abhinav Hi- tech college of engineering and technology
• Narsimha Reddy Engineering College
• drk College of Engineering and Technology
• ellenki College of Engineering and Technology
• Lords Institute of Engineering Technology.

All the best!!