Hi Pranav, TS EAMCET, there is no important chapters in the one stream whether it is physics, chemistry or maths.if you talking about main topics in physics then oscillation and waves etc. if you want to know about more related to TS EAMCET then check it out given link :

https://engineering.careers360.com/articles/ts-eamcet-syllabus

* if you want to know about weightage of topics then check it out given link :

https://www.simplylearnt.com/topic-weightage/TS-EAMCET-Engineering

good luck