I suggest you wait for your countries release as you may find like the iPhone 5 it is a different model for your country
Australian LTE is same as Britain and the model for both iPad 4 and iPad. Mini will be different to the USA LTE 4g Only your local apple store can advise you if you Ned more info A USA model will work but not take advantage of the 4. G in India
It is not universal as far as I know
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