KOLKATA: A woman from a slum in Metiaburuz became a millionaire overnight. The woman, who “prefers to stay indoors" and "does household work", suddenly came to know that she has a bank account.When Enforcement Directorate (ED) officials knocked on her door on Sunday night, the woman came to know that she has more than Rs 60 lakh in her Jan Dhan bank account.Based on a specific input from the Union finance ministry, ED officials on Sunday conducted searches at four places in Kolkata and adjoining areas.Tracing the address registered with the Jan Dhan bank account, ED officials reached a Metiaburuz slum on Sunday evening. After looking for the address for quite a while, they reached the house of a daily wage labourer. Upon enquiry, the officials came to know that the account belongs to the man's daughter.It was difficult for the ED officials to believe that a member of the family, which has a total monthly income of Rs 6,500, deposited Rs 60 lakh at one go.“Her father did not know she had a bank account. When we asked the woman she was clueless. May be she had signed the document without knowing what she was signing on," said an ED official.But her account with a public sector bank showed that Rs 60 lakh was deposited after November 8. “We are now interrogating her to understand if she had given consent to open the account on her behalf or she was kept in the dark all through," said the official.