Some good colleges that offer cyber security branch in Btech are:

• SRM Engineering College, Kanchipuram

• Lovely Professional University Jalandhar

• Galgotias  University, Greater Noida

• Sastra University, Thanjavur

• Graphic Era University, School of Engineering and Technology, Dehradun

IITs and NITs do not have Cyber Security as a branch of Btech. They offer Cyber Security as a minor subject in CSE or you can study about it on your own separately.

Hope, it helps!