Food: If you are preparing your own food, it should be in the range of 300-400 QR / Month. If you eat out / order it, then the amount for lunch and dinner would vary from QR 300 to 1000 depending on the place from where you would order it.

Rent: Again depends on where you take the accommodation. One room furnished studio apartment can be had from 3500 QR to 5000 QR (talking from the Indian perspective). However, it can also be had for lesser than mentioned above, if one rents a room in a villa, etc.