have a look at https://www.rhodeshouse.ox.ac.uk/media/45958/unofficial-guide-rhodes-india-2021-22.pdf

try to achieve what rhodes requies and then even if you dont gets rhodes you will have a high chance for uni/college scholarships at oxbridge

1. top 5% by academic merit
2. evidenced social transformative skills
3. a couple of publications in reputed journals and a research assistantship