When creating a company, Tally creates a sub-directory under its \DATA directory for the company. The directory is allotted a number in serial order starting with 0001 (example – 10001, 10002…10009...10020, etc these are system generated codes for the company).
In order to automatically load a company, Tally has to be configured appropriately by setting the Tally.ini file (available in the Tally directory).
Ensure that Default Companies is set to Yes and specify the company number which has to be loaded automatically, for example, Load = 10000
Note: You can specify any number here as per the information available in the data directory (10000 or 10002 or 10003, etc)
Example of sub-directories created by Tally for different companies:
