I propose that we add it to our manifesto that we will not install any CCTV cameras in classrooms.

CCTV cameras are a direct violation of right to privacy of students. Any argument of installing CCTV cameras is weaker than the privacy argument. Quoting Bruce Schneier :

security must be evaluated not based on how it works, but on how it fails.

And it fails badly.

[1] https://livewire.thewire.in/campus/aap-govt-school-cctv/

[2] https://thewire.in/education/delhi-government-schools-facial-recognition-cctv-cameras

[3] https://thewire.in/education/supreme-court-delhi-government-cctv-classrooms

Side note: We also need to teach people that they should not give away civil liberties in the name of security. It does not solve anything but it gives an illusion that we are doing something. It is a routine practice that easy measures are adopted to solve complex problems rather than understanding and attacking their root causes.

In last few years, we have seen students being protestors as well. CCTV cameras might be used to "discipline" them as many times teachers/parents might not be approving of the protests(it can be against the schools/colleges itself)