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Ncert books:
Sanskrit Manika
English > litertature, MCB , Grammar 
Social Science > india and contemporary world , democratic politcs , geography, economics

Reference Books:
for maths R D Sharma
for science> S chand of Physics Chemistry Biology
for english Social science and sanskrit   TOGETHER WITH or FULL MARKS
you can use OSWAAL sample papers for practice
Why marathi?
theres an option between marathi sanskrit and hindi you can take anyone you want
And wht abt english?
english is compulsary
Kk thanks. But still I am confused!
India and contemporary world Democratic politics Contemporary India Gulliver's travels Three men in a boat Fit