This affordable handset went out of stock last week as no less than 250,000 units were sold in a flash sale via Amazon.in in less than five minutes. However, over one million potential customers chose to be notified about the availability of this smartphone.
http://www.notebookcheck.net/Xiaomi-sold-250k-Redmi-4A-smartphones-in-four-minutes.209082.0.html
Thats... Strange. I mean 4A has been on the market for a long time. Even the LTE B20 version. Dont you mean 4X?
The 4A has been around since November in China, but only made it to India recently.