How many optional papers should we select for UPSC mains exam? How to select them? On what basis, graduation or interest?

How many optional papers should we select for UPSC mains exam? How to select them? On what basis, graduation or interest?

thank you..

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in the mains exam you need to choose two optional subject.

You should choose the subject as per your interest and you would have great knowledge.

There are approx 24 optional subject in mains exam.

you can choose two of them.


List of optional subjects
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CSE optional subject.jpg