Hi Soni,

As we all know that the navy ssr exam is generally conducted in 3 phases as :-

1.written test

2.physical fitness test

3.medical assessments

So, only those candidates are considered eligible for pft rounds who had clear the written test with cutoff marks.

As the written test consists of total of 100 marks , so you need to score around 65-75 marks ( for every category candidates ) to get eligible / selected for next phase of the exam.

Hope this will be helpful for you. 

For more details and informations you can check out the official sites too . 

Good luck.