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As per your query... Yes!!! you can take part in UPSC NDA 2022 (National Defence Academy & Naval Academy Examination) without having maths in your class 12th, but keep in mind that without maths you can only apply for army not in Navy and Air-force, and most important that you have to study maths for good marks to clear NDA Maths cutoff first and you have to give some extra effort to clear it if you do not have maths in 10+2.

And the other basic criteria for NDA is listed below:

• For Indian Army - You must have passed Class 12 from State Education Board or a University
• For Air Force and Naval - you must have passed 12th class with Physics and Mathematics from State Education Board or a University

For more information about NDA checkout given link below:
https://competition.careers360.com/exams/nda

Hope you found it helpful
All the best!!