Xiaomi has announced that it will launch the Mi A3 as India's next Android One device on August 21, 2019. However, Amazon may have spoiled its reveal by publishing listings for its SKUs ahead of time. They show that these phones will at least start at INR 14,998 (~US$210).
https://www.notebookcheck.net/Xiaomi-Mi-A3-to-launch-in-India-on-August-21-may-start-at-about-US-210.431115.0.html
A3 is a huge downgrade compared to A2 due to the low res 720p display only :-[