Even after a month of the launch of the upgraded e-filing portal for income tax, its non-functionality has brought the entire return filing and assessment process to a grinding halt. The contract for the portal upgradation was awarded to tech major Infosys in 2019 for Rs 4,242 crore.

       According to tax department sources, Income Tax Business Application (ITBA), the application that is used by Income Tax officials for assessment, is unable to communicate with the taxpayers as the communication channel is e-filing portal. The notices and show causes are generated in the ITBA and ...