Private International law or Conflict of law is a branch of interanational interstate laws and international law that controls all proceedings concerning a "foreign" law factor. In these foreign law factors different judgments will result very well that depend on which all the laws of jurisdiction are practiced as the Lex Causae.

In civil legal law systems, private international law is a stem of the domestic legal systems that are dealing with the willpower of which the state law is valid to different situations cross over the borders of one specific state and also connecting the foreign elements is called the conflict of law. This law also contains different procedures of international civil and also a law about the confliction of jurisdictions same like as the citizenship laws, which is known as the part of public laws.

In fact, there are two main rivulets of legal thoughts on the character of conflict of laws. From these groups, one of these researchers observes Conflict of Laws as a major part of international law. This law is also claiming that its models or rules are consistent, obligatory, very much essential and common for almost every state. This stream of legal considerations in Conflict of Laws is known as the universalism. Some other researchers sustain the view that each state generates its own unique rules and regulations of Conflict of Laws by following its own policies. This unique theory is also known as the best and most famous theory of Particularism in the conflict of laws.
 
Private international law is categorized into two main types. Private international law comprises the conflict of law rules that determine different laws in which a state is responsible for the particular relations. In the broaded senses, private international law comprises private laws and stuff of legal norms that have directed extraterritorial characters. These laws are usually applied on the various regulations on real properties, currency control regulations, banking regulations and insurance regulations as well.

Conflict of law has three main, but different names. These names are Private International Law, Conflict of Law and International Private Law. All these laws are not totally descriptive and these laws are interchangeable. The term of this law is generally used in the jurisdiction processes of Anglo, which is an American Legal Tradition. This law is also applied in different other countries of the world like England, Australia, United States of America and Canada. Private International law is used in the Spanish and France as well as Italy, Portuguese and Greece. The branches of International private law are found in Germany and other German Speaking countries of the entire world. The modern conflict of law is used or commenced in the Northern areas of Italy during the middle ages and other trading cities of the world, like as Pisa, Genoa and Venice.

There are many different stages and categories of the conflict cases in this law. First of all, the court decides that whether it has a jurisdiction or whether it is suitable venue. The other step of this law is the characteristics of different action causes into its legal categories of constituents that usually involve some incidental questions. Every category of this law is decided that this law must be proved before the forum courts and also utilized in order to reach at a judgment. The major key element in this law is renvoi.
The successful party then imposes the judgment essentially that will absorb various tasks of protecting the cross-border gratitude of the judgment.