Coding Standard are the set of rules and guidelines that developer must follow while writing the source code for project. Different organizations follow their different coding standards to write the source code.

Every company use their own coding standard which they follow. So developers use these standards which maintains the consistency of code. It reduces the chances of errors and complexity of program

some of coding standards are proper indentation, limited use of global, standard headers file used for modules, naming convention of local variables, global variables and functions and error returning values with exception handling convention.