This blog post details the recent mandatory implementation of Aadhaar OTP verification on the Income Tax e-Filing portal for ITR verification and other services. It explains the reasons behind this shift, focusing on enhanced security, streamlined processes, and data integration. The post outlines the crucial impact on taxpayers, emphasizing the necessity of PAN-Aadhaar linking and updated mobile numbers. It also provides actionable steps for those not yet ready and reiterates the benefits of this digital transformation for tax administration in India.