Helps to validate (Check) GSTIN of any dealer completely Offline.
This app uses a checksum value to validate the GSTIN.
The geniusness of the app lies in the GSTIN itself, the 1st 14 digits of the GTSIN are mathematically linked to the 15th digit. The mathematical formula to derive this was closely guarded secret until recently. Know more - https://youtu.be/nlA71i5hQBI
The app is for businessmen looking for validating/checking GSTIN of their customer and suppliers.
If you are looking for the same functionality in Excel, download excel utility - http://adarsh.madrecha.com/gstin-offline-check/
Where you can just enter formula =AdarshGSTINcheck(A1) to check GSTIN Validity.