Hello Pavani

Firstly divide your study time ( excluding your sleep time and your other routine) into 2 parts. Half of time give to main subject maths or biology.

Other half to Physics and Chemistry. Revise minimum 3-4 chapters of chemistry daily. Give minimum 2 hrs to solve  chemistry MCQs on your own. Don't stick to difficult topics which you are not able to do . Revise whatever  syllabus you have completed properly. Next day start with where you have left the previous day. ( Next chapters) revise for 10 minutes what you did previous day. Do numericals carefully.

Give morning time to physics and inorganic chemistry. In this way you will feel confidence  about completion of your syllabus.