The income tax department is probing tax evasion cases done through duplicate permanent account numbers (PANs), including over 100 cases detected by the Delhi Police.

The sources said the I-T department has obtained information from Delhi Police authorities about detection of over 100 PAN cards of different people of multiple identities and further investigations are in progress.

According to sources, a group of people in connivance with tax officials had acquired duplicate PAN cards by giving wrong information about their identities and tried to avail loan facilities from banks.

The cases were detected, the sources said adding that these cases have been reported to Delhi Police only when bank officials went to their residence to verify address and later to the income tax department to verify their PANs. Bank officials could not trace these borrowers as they have submitted wrong PAN cards and residential address. The matter is under investigation, said I-T sources.

The investigation wing of the income tax department is also probing another case of misuse of PAN card, said an I-T official, in which the same person obtained two PANs in different names and used them to apply for separate import licence.

Meanwhile, out of about 13 lakh duplicate PAN cards detected across the country, the department has cancelled about 8.5 lakh cards, including about one lakh card since April 1.