Hey!
I will provide you with some links that can help you in finding the papers.
https://school.careers360.com/articles/ntse-karnataka-question-papers
https://mystudycart.com/ntse-past-year-papers
http://dsert.kar.nic.in/easp/ntsenmms.asp
these links have previous year papers and sample papers.
i hope it helps you
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