Got income tax demand notice due to errors in Form 26AS, AIS like TCS employees? How taxpayers can respond to it

Tax notice, errors in Form 26AS: Around 40,000 TCS employees recently got a tax demand notice due to an error in the TDS amount shown in Form 26AS and Part A of Form 16. The error was showing due to their internal software glitch. If you got the same tax notice due to a mismatch in tax amount in Form 26AS/AIS and TDS certificates like Form 16, Form 16A etc., then here is what taxpayers can do.