As a failure in KVPY, I can only give you some advice as what to do. First thing, DO NOT expect ANYTHING from whatever coaching centre you join. Secondly, Study GOC from the start of your course. Complete the following... nomenclature, Sn1 and SN2 mechanisms, basicity and acidity, stability of carbocations, some other minor things that you can find out whilst you breeze through the last years papers. Physics pissed me off hard this year. I went into the examination hall thinking mechanics hi aayega chalo attemptable hoga. (Future me: arey bhai bhai bhaago ithr se) Many questions from 12th came. Electrostatics and Optics. Study the electrostatics part also bro.. Maths is highly unexpectable. Last year paper was difficult (2017) however 2018 was comparatively easy. I’m saying this coz I’m pretty weak at math. Regarding RMO, I’d suggest you don’t invest much time unless and until you regard urself as top 30 in state. RMO doesn’t come out of sheer hard work. It involves immense knowledge of maths that cannot be merely crammed into your brain by teachers. I’d honestly say that all the INMO qualified people have lot of potential (and please don’t get me wrong coz such comments always get hate... most of them are gifted). These people who clear INMO etc aren’t good only in math 90% of the time. They’re great students overall. They’re the kinda students that coaching centres run behind for advertising. Coming back to KVPY, biology.... you might hate it right now coz 10th biology in CBSE sucks so bad. There’s nothing in 10th biology. You cannot just do ratte in 11th and 12th bio. But before your boards ensure that you are completely thorough with 10th bio. Ensure that in boards you’re able to get full in bio. Happened to me. Studied NCERT class 11. Did well in bio. Lost in maths some parts and physics almost 70%. Chemistry I could definitely have done better if I had studied mechanisms. Anyways I’d suggest that you start studying GOC (if you get time hydrocarbons), electrostatics, magnetism, electricity, optics (these are the biggest chapters of a JEE syllabus... covering these chapters will be difficult no doubt but think about the after effects and swallow the hard pill). Bio only selected chapters. Human Anatomy, genetics, diseases, there’s one more chapter that I’m missing out (@Manan_Upadhyay please help I’m unable to remember)...
How to study organic?
Refer to VKP sir lectures for GOC and (hydrocarbons if time permits)
Solve MS Chouhan.
How to study 12th physics?
Physics Galaxy lectures for theory.
Questions do objective ones from mains books or just slightly advanced level... I think it would be advisable for you to go with Physics Galaxy books only. If you feel note taking will be a time waste then there is also a Physics Galaxy notes text which contains all notes of physics galaxy YouTube channel.
How to study biology?
How to study maths?
Study Algebra. You’ll ace the test almost instantly if you master algebra. Mohit Tyagi sir lectures are recommended. Book: cengage.
Lastly, one last recommendation is that you buy Resonance DLP for KVPY (they have one exclusive). I had this but used it effectively only in last week before exam. I’d say for KVPY, the aforementioned package is a must.
Bro if you’re solely preparing the 12th or 11th end chapters only for KVPY then the above Reso DLP should be enough. If it is anything more like for JEE as well then you have to pick up the physics galaxy books and MSC.
To top this all off, concentrate on 11th also. This is difficult.. no doubt. But you need to do 11th well. You shouldn’t sacrifice 11th for doing 12th topics. So, if possible try to spend some time in 10th itself to compare easy parts of GOC. Nothing wrong with that. I made a mistake by studying solely for boards during the 3-5 day breaks given. I didn’t listen to @ananda_krishnan due to parental pressure to do well in boards.
Any help with regard to boards also you can ask in case your from CBSE. If you’re from ICSE, ask @Manan_Upadhyay. Signing off.