The Yu Yuphoria is indeed the best bang for the buck. As Yu which is in tie up with micromax is constantly launching budget smartphones in the market, I will describe it as one of the most deserving contender of other budget- smartphone manufacturing firms like the Xiaomi, etc.
The Yu Yuphoria is a powerful smartphone powered by Qualcomm snapdragon 401 and featuring Adreno 306 gpu.
Moreover the device can handle heavy multitasking with the presence of 2 gb RAM. Also the device is packed with decent camera features, with 8 mp primary and 5 mp secondary camera.
Overall the Yu Yuphoria is a good choice!