Hello,
You have to check the syllabus. If syllabus is same and prescribed books are same then yes you can able to crack it with one preparation.
If boos are different then you have to read those books as many questions comes from books only.
This is on your part to check the syllabus and if any variation I'd there then you have to prepare those additional sections and books too.
Hope it helps!

BHU Varanasi

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