If you're building a multirotor in India, the ESC is one of the most important parts in the build. The SimonK 30A ESC has become a favourite among Indian makers for its fast throttle response and low price.
Why SimonK? https://thisesc214850.articlesblogger.com/64499457/simonk-red-30a-esc-the-reliable-pick-for-fpv-quadcopters