These are the top reputed colleges in Telangana that offer civil engineering course :

1. Indian Institute of Technology (IIT) Hyderabad
2. National Institute of Technology (NIT) Surathkal

You can take admission in these institutes by appearing in JEE Mains Examination. For IIT Hyderabad, you have to also qualify JEE Advanced examination.

For more information about these colleges :

https://www.careers360.com/university/indian-institute-of-technology-hyderabad

https://www.careers360.com/university/national-institute-of-technology-warangal

Good luck !