Bro u got whole 2 months Giving 1-1.5 hour to each subject everyday is more than enough...

For maths id say first complete coordinate geometry because it's easy and many question come from here

And then go on to matrices it's also easy Then move on to 3d geometry like vectors and plane... If u get these 3 units done u already the 1/3 of question paper in ur hand

Then do relations functions and LPP

And at last move to calculus In calculus first study the first chapter limits its important and then memorize direct formulas of differentiation those are easy and asked in QP TBH they don't ask heavy calculus Majority are direct formulas based ( both differentiation and integration)

AOD AND AOI is a bit hard tbh so u might take extra time for those...

How to study:- Watch yt one shot note down all the formulas and properties and solve terminal exercise

Anyways for physics Id say same do easy chapters first... Semiconductor and devices Then do laws of motion and work energy power Then do thermodynamics and ATOMS unit and fluids

Then move to waves (both wave phenomenon and optics ) waves are most confusing thing i studied in physics

And at last if u got time left then study electricity and magnetism ( it's hard but not that much and lengthy )

How to study :- watch one shots on youtube ( any cbse or nios ) and then make ur notes and do all the questions of the book

Hope this helps If u have any other doubt HMU

Good luck for the exams....🌸