MasterGST GST Software is designed to manage multiple clients / GSTNs / Businesses in one place, a One-time effort of adding your client and managing all at one place and avoiding OTP generation all the time. While adding your client, you can validate your client details, GSTN Number, and GST user name. Now access your GST Software on MasterGST & Manage all your clients. For more information visit us at: https://mastergst.com/gst-software-for-return-filing-billing.html