Hello

Yes you can revise for jee mains in 40 days if you had done the preparation earlier Sincerely.

Don't do any new topic in these 40 days.

Revise the topics you have done earlier.

Focus on chemistry.

Don't forget to do the previous year papers.

Hello Prashant,

Yes 40 days are enough for revision but you need to put your 100% in this 40 days.You can have more focus on physics as it has more weightage .Try solving previous years question papers and specially focus on Modern Physics.

MODERN PHYSICS

UNITS AND DIMENSIONS

KINEMATICS

ELASTIC PROPERTIES AND THERMAL PROPERTIES

CURRENT ELECTRICITY

FLUID MECHANICS

Go thoroughly from this topics and revise the best you can and be prepared for everything.

All the best!