Just saw the Yu Yureka. Consulted some friends. They say even if the Micromax variant is good in terms of specs, it will lag overtime.
Also, I don't want to go for Micromax.
I'm now planning to buy the Redmi Note 4G. It's simply amazing except the fact that it has a 5.5 inch screen ~_~
Except that, it's a complete beauty and I'm on the verge of buying it.
Just some last advices?
Ask your friends if they know anything about CM11 or AOSP based roms.
If their answer is no, ask them to kindly not comment about things they don't know about.
Yureka, despite being a rebranded phone, is the simply best under 15k specification wise. Redmi Note 4G has 32 bit SD400 while Yureka has 64 bit SD615. I'm using it; well my sister is actually. It won't lag overtime, the rom isn't crapwiz from samdung.
If you get any problems, all you have to do is ask for a solution.
You've heard about Nexus 4? Well Yureka has better overall specifications. Why am I saying this? Because Nexus 4 was based on my LG Optimus G. Updates will be taken care by cyanogenmod.
I wouldn't have recommended it if I hadn't experienced it myself.