Add an Extra Layer of Security to Your TallyPrime Data. Protect your valuable accounting data with Email + WhatsApp OTP Based Login in TallyPrime, an advanced security module designed to prevent unauthorized access to your TallyPrime data. This TDL add-on introduces One-Time Password (OTP) verification during login, ensuring that only authorized users can access your TallyPrime data. Whether you are a business owner, accountant, auditor, or enterprise user, this solution helps strengthen access control and improve data security without modifying the core functionality of TallyPrime.