Nice Sketch, Kuruan!
Couple of suggestions to make it even better. The colors used in the Indian flag are not orange and green. The [wikipedia article on Flag of India][1] has the exact color codes. You can use them here to make is look more authentic.
Try reducing the size of the circle and add spokes of the ashoka charka. If you need some help, just ask in the [Mon School Telegram channel][2].
[1]: https://en.wikipedia.org/wiki/Flag_of_India
[2]: https://t.me/mon_school