As mentioned in our page: https://competition.careers360.com/art , there is  a 5 year age relaxation for Ex-army personnel of UP who served for 5 years in the Army and that means such Candidates can apply until 45 years of age. Now your service into Navy and you might not be eligible for the age relaxation. But again this is just 2020 and we are talking about the eligibility criteria of an exam which is further 5 years away. Criteria change often and so do relaxation criteria. So it might be too early to talk about it now.