Hello Sandeep,

Among the three subjects, Chemistry is the easiest to score off. Mathematics was the most difficult, while Physics was sandwiched between the two.

All you need to do is to prepare strategically and for this you need to be well aware of the syllabus exam pattern.

I would suggest you to solve NCERT questions and previous year questions as much as you can.

For further help regarding preparation you can refer to the link given below -

https://www.google.com/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/articles/how-prepare-for-jee-main/amp&ved=2ahUKEwjiu82_25jnAhXo6nMBHRsIB0gQFjAHegQIDhAL&usg=AOvVaw3Z7NdP7fa5fX0xv1cPh8w7&ampcf=1

Good luck,

Hope it helps :)