Hello,

PUC mark's card meaning your 12th class mark's. Thid is the important document for join the Indian Navy.

So if you don't have right now the certificate marks then you will go for your marks sheet or wait for till year.

And Indian Navy have require mathematics in your 12th marksheet. If you don't have math in 12th board exam then you will can't acceptable for Navy but if you clear a math exam conducted by NDA  then you will join the Indian Navy.

All the best.