Micromax subsidiary Yu Televentures will offer 10,000 units on the first sale of its Yureka smartphone via Amazon India on January 13.The Yu Yureka smartphone will be available to buy starting 2pm IST on Tuesday for registered users from Micromax's official online partner for the handset. Micromax's new Yu brand of Cyanogen OS-based smartphones last month announced the early closure of registrations for the first sale of its Yureka smartphone, due to the "overwhelming response" received by the firm