Even as the government is in overdrive to get people to link their Aadhaar number with the income tax (I-T) department while filing returns, some of those without the unique identification number have managed to find a loophole in the system. They say they have been able to file tax returns by putting in all 0s or 1s instead of the 12-digit Aadhaar.

The drive to link Aadhaar with I-T returns started in July last year. Central Board of Direct Taxes had issued a circular, making it mandatory to provide Aadhaar or the enrolment number with IT returns for everyone who was eligible ...