Micromax's Cyanogen OS-based Yu Yureka sold out in seconds again18
It's not hard to see why Indian customers are crazy about the Yu Yureka. The smartphone costs $145, but offers features that you usually find on pricier devices: a 5.5-inch 720p display, LTE connectivity, 64-bit octa-core Snapdragon 615 processor, 2 GB of RAM, 16 GB of expandable internal memory, and a 13 MP rear camera.
Micromax is one of India's leading smartphone makers. It established the Yu brand in order to exclusively develop and sell Cyanogen OS-based handsets, and it's definitely off to a very good start - thanks in no small part to the fact that it's using the Xiaomi model (i.e. flash sales). The Yu Yureka will be on sale again on February 5, only on Amazon India.
sources: Yu, Amazon India