NSEP:
1.Complete HCV(relativity won't be asked in the first level)
Maintain formula sheet for each subtopic
Ex: Electric field due to a charged ring on it's axis. you must know that (a^2+x^2)^(3/2) will be in denominator. You cannot sit in the exam hall and derive all this. NSEP contains questions, many of which can be solved instantly if you know formulae.(stress more on viscosity, surf tension, mechanical properties).
2. By looking at the question, relevant formulae should read out in your mind. Remember, in NSEP you are not fighting physics problems, you are fighting the time.
NSEA:
1.NSEA emphasizes the conceptual clarity of the subject. Thus, rote learning is a no-no.Make sure to be thorough with Maths and Physics as they are very important for this exam.
2.Shallow knowledge will not help. An in-depth clarity of the topics is required.Take the help of online learning. There are certain websites out there that cater to the needs of people signing up for olympiads like NSEA.Be sure to clear all your doubts.
3.Complete conceptual clarity can only arise when your mind is doubt free about the subjects. You can take the help of doubt-clearing websites like BasicFirst. This will help you clear your doubts efficiently and help you build your confidence.
The aim of the first stage of the examination is to have a wide reach, to progressively expand this reach, and to attain nationwide representation for stage II without overly compromising on merit.



Further on, astronomy is a captivating subject, and when you enjoy learning about it, the sky’s the limit.


Try to solve as many previous years question papers as you can. This process will give you a fair idea of the type of questions that are asked so that you can plan and study accordingly. Also, this step will give you some experience in solving the NSEA paper
.Do not forget to brush up your Astronomy knowledge. Famous constellations and their main stars is an important topic and should not be missed. Also, have some practice in sky observation. Download a star chart and learn from it.