Is there any possible way I could take AP courses in India? Plus, am I eligible for the Nat. Merit Schlr. from India?

Hello! I am a recent graduate from junior high, based out of Bangalore, India. I study in a non-IB school, where credit scores, AP classes, honours courses, and clubs are virtually non-existent. In regards to this, I wanted to ask a series of questions:

1. Is there any tangible way in which I could participate in AP classes and honours courses in India?

2. Since clubs do not exist in my school, is there any way I could participate in external cubs where I could hold student leadership positions?

3. As an Indian citizen and a non-resident of the USA, will I be eligible to qualify for the National Merit scholarship if I take the PSAT or NMQSAT?

4. Additionally, right out of junior high, my stats currently consist of this: I have attended over 10 MUN conferences, I play the Piano, certified by the Trinity board of music ( Grade 3 as of now). I hold a student leadership position in the prefectorial council of my school, I have self-learnt 1 programming language as of yet. I have an IEO Olympiad school level gold under my belt, as well as one from the IGKO. I have also signed up for community service for the 'Habitat for Humanity organization' for next summer (2021). I have, as of now, a 4.0 GPA (94% in exams). I plan to expand and improve on this lift by the time I am a senior, but, as of now, I would be perpetually grateful if anyone could provide inputs on as to how I can improve my ECs.

Thank you!