Hi dear,
First I want to appreciate your courage and happy to hear that you are fine now.If you want to do better here is some topics you shortly cover.
You should cover NCERT for chemistry because it is easy to score good if you read all topics.
For Math
1.Matrix
2.Coordinate geometry
3.limit,statics,reasoning, trigonometry
For physics
1.Modern physics
2.Electrostatic and magnetism,current
You have a short time so these topics are easy and you can cover these with a limited time.but focus on chemistry it will boost your rank
Hope it helps
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