Hi Ankush,

The time table for JEE Mains preparation should be like month-wise or week-wise, like you will cover a chapter of Mathematics in this week and a chapter of Physics thoroughly in the next week. Like this you will be able to complete the whole syllabus of JEE Mains within 3 to 4 months provided that you would finish three chapters, each of Physics, Chemistry and Maths in one single week. Next, you have to do revision as many times as you can.

Refer here for detailed time table of JEE Mains - https://engineering.careers360.com/articles/time-table-for-jee-main-preparation

Feel free to ask doubts in the Comment Section.

I hope this information helps you.

Good Luck!