HELP ME CHOOSE A SHOE !!

I am from India. So selection extremely limited. Roshe not available here
Only flex, air retaliate,overplay,downshifter ,etc available.

How are the Flex 2012 ?

well if you can only get what is on your list, get the flex, but honestly, all three are pretty bad. Better off looking for something more along the lines of Nike lunar glide, nike pegasus.
Or something ASICS, Adidas, New Balance, Puma, Brooks
If you have to do lots of walking with the odd bit of running a cross trainer will do, but a running shoe will be better... basketball shoe, much less good

well theres millions of models. you need to pick a price point...

it all depends. This site for good or bad is mostly consisting of people who buy shoes that are re releses of really old models or if they do buy new models then they are rarely used for the intended purpose, only for looking good.

You need to figure out what you need from a shoe. You say that you want something for walking in. To me that would indicate a running or walking shoe, possible cross trainer.
Yo say you will do a bit of running, how much is a bit, run to catch a bus, or the odd 5-10km run?

The asics enduro 8 would be a good shoe for a lot of things, but it is an offroad running shoe, good for a wide variety of stuff, but if you are doing stuff mainly on a sealed road or footpath, then it would wearout real fast...

then I would go the enduro 8... or some other trail shoe... even to the point of hicking boots... but thats just me (for that sort of thing I have salomon xt-wings and north face havoc and they are both awesome, comfortable and hardwearing and tack rocks and mud and sand in their stride)

If you can afford both, why not get both? always good to have a pair for backup just in case

the adizero is a good shoe, but it ispart of the adizero range, which means it is designed to be very light weight and for fast running or roads rather than duable or particularly comfortable. It may be cheap, but it won't be if you go through 10 pairs in the same time as 1 other pair...

I would say go to the store (hopefully 1 store will sell a range of the shoes) try a bunch on and go with what feels comfortable, but still feels like it will not fall apart too quick.

There are many brands available in the market, and choosing from them is a difficult task. Adidas, Puma, Reebok, Merrel and much more. Choose that which makes you feel comfortable and fits best to your pocket.

paulthomas/Louisbarry, even though your intentions may be good my finger is itching to hit that 'report spam' button.  Please prove that I am wrong.

wow since you're in india, can't you just ask some aunts and uncles who have gone overseas to bring you back a pair? If they're in the US, UK or AUS, be worthwhile getting some more decent pairs....

I would have already gone for them quic's(higher cut means more protection from mud and dust) if I were you- Adizero will get trashed real quick so you won't get the optimal use for them.... Plus it's more a matter of which shoe will last you longer is the bigger question like Mik said earlier.