Actually there is lot of things that affects the fuel consumption dude. For example, usage of Ac. Since you are living in such a hot country, I am sure the Ac must be on all the time. And off course it affects the fuel consumption. Secondly, don’t put much weight on your car, I mean any kind of heavy bag or luggage. Thirdly, heavy tires on your car also make the fuel consumption go down and down. So take care of these things Bro!