Hello Prakhar,
Thank you for your introduction!
I am new to the open source world and I will be trying for GSOC'23.
For the program year 2022 (which is wrapping up already) we made a page with guidelines for contributors: https://www.flashrom.org/GSoC Most of the information is still relevant, so you can definitely start there. We will be improving the page around the end of year, to prepare it for 2023.
Good luck!