Yu Yuphoria bricked after installing custom recovery and boot file
Flashing stock firmware may solve the softbrick. 
Download firmware fron this link. - The link is for model Y5010a, since you didn't mention which model. Update with model name if it's differ.

There is 3 files, in zip format. Choose any of them, unzip it and you'll find drivers, the flash files and the flashing instructions. Install drivers and your phone should be detected.