Complex sentence: The first mobile under the brand name of "YU" running on Cyanogen OS named'YUreka', Designed by the chief engineer Ayush Kumar being an affordable but powerful mobile phone, it got a good sales response from customers.
Split into simpler sentences: The first mobile under the brand name of "YU" running on Cyanogen OS is named'YUreka'. It was designed by the chief engineer Ayush Kumar and since it was an affordable but powerful mobile phone, it got a good sales response from customers.