Perhaps the oldest engineering discipline in history, Civil engineering is an engineering discipline that deals with the design, construction and maintenance of the physical and naturally built environment, including works such as bridges, roads, canals, dams and buildings.
Sub-disciplines include environmental engineering, geo-technical engineering, structural engineering, transportation engineering, water resources engineering, materials engineering, coastal engineering, surveying, and construction engineering.
You can find civil engineers in virtually each and every project in the world. All public infrastructure you see in any city would have involved the work and approval of Civil Engineers!
There are various diploma, bachelor and master courses through different universities and institutions. Most of the institutions take student through the entrance tests. To become eligible to take entrance tests you have to study Mathematics, Physics and Chemistry.
Once you have taken a course in Civil engineering, your most important tool is your common sense. Understanding the ground reality and the customers needs goes a long way in becoming a good civil engineer. Most of the formulas used in day to day application to be used are codified. Nothing in this regard changes.