The United States government was yet to act on the extradition request for gangster Abu Salem's [Images] wife, Samira Jumani, although it was made more than a year ago, Central Bureau of Investigation sources said on Friday.

Samira has been booked in a passport forgery case registered at Lucknow, where she and Salem acquired genuine passports furnishing forged documents in the name of Sabina Azmi and Akil Ahmed Azmi respectively, the sources said.

She was tracked down in the US four years ago and the CBI made an extradition request a year ago, the sources said, adding that although she is not wanted in the 1993 serial bomb blasts case, she could be privy to a lot of information.

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Sources said the US was still examining the case made out by Indian agencies against Samira and they were hopeful of her extradition since India and the US have entered into an extradition treaty.

When asked if her extradition could be a problem since she could have become a US citizen, CBI sources said they were not aware of her citizenship. Even then, the US can revoke her citizenship, as she could have secured it by using a forged passport, they said.

Samira and Salem procured the forged passports in July 1993 and subsequently, Samira settled in the US with an eight-year-old son from Salem.

Complete coverage: Abu Salem's extradition to India