Filing your own income tax return can be a daunting and tedious process for many. That's when you hire a consultant. But, what if the consultant mixes up your ITR between the new and old income tax regime? You may get a tax notice, and that's exactly what happened with Mr Shah from Bengaluru. A resident of Ali Asker Road, Bengaluru, Mr Shah filed his income tax return (ITR) under the new tax regime and reported a total income of Rs 32.55 lakh. However, on September 30, 2025, his tax consultant inadvertently filed Form No. 10-IEA, effectively exercising the option to move him out of the new income tax regime! This created a problem for Shah because his ITR had been prepared on the basis of the new income tax regime. But, filing Form 10-IEA meant that his income tax liability would instead be determined under the old income tax regime, which resulted in a much higher tax outgo.