The Interpol issued a red notice for Samira Jumani, the first wife of extradited underworld don Abu Salem, on Thursday.
Agency reports said Jumani is wanted for offences like criminal conspiracy, fraud and forgery.
External Link: Samira, wanted by Interpol
Central Bureau of Investigation sources had on Wednesday claimed that Salem's ex-wife could be privy to many secrets about the 1993 Mumbai serial bomb blasts accused.
Samira, whom Salem married in early 90s, after facing an abduction case filed by her parents, had escaped to Dubai with Salem after the serial bomb blasts in 1993, sources said.
She was booked in 1997 for procuring a forged passport from Lucknow in the name of Sabina Azmi in July 1993, when Salem also procured a forged passport from Lucknow in the name of Akil Ahmed Azmi, sources added.
Salem's 1st wife key to secrets: CBI
The couple has an 8-year-old son from their marriage who stays with his mother. Salem has claimed that he divorced Samira after his affair and subsequent marriage with starlet Monica Bedi in late 90s.
CBI sources believe that more than Monica, it was Samira who holds keys to several intricate details about Salem and his involvement in blasts, his extortion business and other interests.
Salem is alleged to have made investments in real estate in Samira's name, sources said, adding that although a red corner notice has been issued against her in the passport forgery case, trial of which is on, there is no information about her.
Complete Coverage: Abu Salem Extradited
"However, there is no evidence yet that can point at her involvement in the serial bomb blasts," sources added.
With PTI inputs