This is an answer to the question asked whether there was a bolt missing were the arrow is pointing in the pic.
No, there was no bolt of any sort in that place. Certain models come with certian features in only certain countries not all. So the engine block is the same for all the countries since its manufactured from the same factory. and hence you have the missing bolt, coz the feature is not available in pakistan models.
As for the smoke and missing coolant, putting two togather, I think you have a blown head gasket, and get it check ASAP. Or you will damage more things on your car, like engine cease and etc.....!