Hello Alekhya,
You can not get BARC previous year paper because of BARC Consider BARC Recruitment paper as their Intellectual property.
The statement regarding this fact is quoted below,
"Question papers are the intellectual property of this centre , The disclosure of which will harm the competitive position of other candidates."
If you want to study for BARC then go with the syllabus. Practice all concept and theories. You can consider GATE previous year papers.
All the best.
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