For the BA Political Science entrance exam, the number of papers and subjects will vary based on the specific university or entrance exam (like CUET).

Generally, you'll have to appear for a language paper, a domain-specific section (including Political Science and related subjects like History or Economics), and a general test.

Some universities might have specific combinations of subjects they require for the domain-specific section.

You need to check the specific requirements of the university or entrance exam you are targeting for accurate information.