if a GST number is valid

The first step in checking the validity of a GST number is to check the PAN number. If the PAN is the same as that of the registered business, the next 10 digits are the PAN number of the business. The thirteenth character is the entity code, which indicates multiple registrations by the same entity in a state. The fourteenth character is a blank, and the fifteenth character is a check code, which can be a digit or an alphabet.

The 13th digit is the entity code and is used to identify the order of registrations for a legal entity. For example, if a company has registered under several names, the thirteenth digit will be "1" for the first registration, and "2" for the second registration. The 14th digit is "Z" for a current registration, and it is used for future use. The 15th digit is a check code, and the last ten hexadecimal digit may be a random alphabet.

It is possible to check the validity of a GST number by entering the PAN, but it is more difficult to do so if you have a PAN number. Unfortunately, there are online services that will allow you to do this, so you'll need to rely on trial-and-error methods to find the right GST number. If you have the PAN, the initial two codes are the state code, and the next ten are the PAN numbers. In most cases, the first digit is the state code, the first thirteen are the PAN number, and the fourteenth is usually Z. The last character can be 0 to nine or an A to Z.