In many you tube videos they used to tell us that if we have to select PCB then we can take basic math..but we never knows CBSE they may change their rule again that in PCB, physics is related or need math..so to be in a safe side they are persuing to select standard mathematics..so suggest me plzz.

Yes it's better if you know the basic mathematics atleast. Because in physics, in chapters like oscillations, work energy and power, circular motion, rotational motion, electrostatics, etc. you'll need to solve numericals where you'll need maths for sure. I mean if your maths is strong enough, things will work fast. Like for example, you need to use integration, differentiation, calculus part in many of the sums in physics, toh you can have an edge over the other students only by having your maths skills up-to-date. I'm not telling you to study complete maths but yes you said write, atleast have the basics cleared.

Best wishes. Thankyuou.