Hello,

The eligibility criteria of MNS Exam is candidates are required to pass 10+2 from a recognized board with PCBE as core subjects securing 50% aggregate,   now coming to your question there are three sections in MNS Exam of 150 marks in total from sections such as general english ,  general awareness  physics, chemistry, biology hence you should be thorough with NCERTs science books regarding this which are written in simple and easy to understand language, other than this go through sample papers, apply mock tests on regular basis, , check out the syllabus at https://medicine.careers360.com/articles/indian-army-bsc-nursing-syllabus for a better understanding regarding this, go through preparation tips at https://medicine.careers360.com/articles/how-prepare-for-mns-exam,