Courts are there to settle the disputes between individual persons and to declare and establish their rights regarding the matters in dispute. So whenever persons fail to solve a dispute among themselves, they can approach the Court by filing a suit. It is called institution of suit.

There are various categories of Courts. All categories can be classified under Courts of First instance and appellate Courts. As per Section 15 of Civil Procedure Code every suit shall be instituted in the Court of the lowest grade competent to try it. Every Court has specific pecuniary and territorial jurisdiction. So we cannot file suits as per our convenience. Rules regarding filing of suits are guided by various provisions of Civil Procedure Code.