Xiaomi's sub-brand Redmi launched its Power Bank to the Indian market in February 2020. It has reportedly proven popular since, as its shipments in the country have now exceeded 1 million units. The accessory comes in 10,000mAh and 20,000mAh SKUs, and starts at ~US$11.
https://www.notebookcheck.net/Xiaomi-sells-over-1-million-Redmi-Power-Banks-in-India.551356.0.html