All the mobile phones which you have listed are equally good and have their own advantages.
Another phone I would like to suggest you in similar budget is Moto G. This is a really good phone which has lots of good features and comes at an affordable price. This phone is currently available only on Flipkart. One of my friends bought this phone a couple of days back and he is totally satisfied with this phone.
If you are looking at a slightly low budget smartphone, then go for Moto E which is priced around Rs.6999 and is also available only on Flipkart (like other Motorola phones in India)
Do online research, ask for opinion from friends using similar phones, look at your needs and select a good smartphone accordingly.
"Winners don't do different things, they just do things differently"