Re: COST OF BASIC THINGS IN THE GROCERY STORE?
wishing you a good time in Mauritius and enjoy it to the max. Due to your questions:
1) As far as I could observe textile plants are more or less spread all over Mauritius.
2) - 5) Cost for food and drinks in supermarket (e.g. Winners, Super U, Way, Spar) are comparable to Western European standard. They are usually well equipped. You'll find almost everything there to which you are used to in Western European supermarkets. Spirits (apart from Mauritian rum) and wine are more expensive than here. Beer is cheaper, but I could not really tell you about the exact prices. But you'll be able to affort some bottles. Either in the supermarket or at a bar/restaurant. Red meat - mostly frozen - is more expensive than here as it needs to be imported. Chicken is much cheaper and you get it everywhere. Seafood: there is a variation in prices. You'll have some local fishes of good prices and shrimps are usually a bit cheaper.
If ever you have the chance to get your food (vegetables, fruits, fish, spices, eggs) on a market ("bazar") I can only recommend to do so. You'll get quite a variety there, the atmosphere is simply phantastic, the prices are good and you are able to "inhale" some pure Mauritian way of life.
All the best