John G. Rowland, who resigned as governor of Connecticut 10 years ago in a corruption scandal, was indicted on Thursday on charges that he tried to hide his involvement in congressional campaigns in 2010 and 2012.

The seven-count indictment was handed up by a federal grand jury in New Haven. The United States attorney’s office said Mr. Rowland, a Republican who served as governor from 1995 to 2004 and as a congressman from 1985 to 1991, would be arraigned there on Friday afternoon.

Calls to his lawyers were not immediately returned on Thursday. His wife, Patricia, told The New Haven Register before the indictment, “We haven’t had our day in court yet.” Of her husband, she said, “He’s worked really hard; he’s done everything by the book.”

The indictment accused Mr. Rowland of suggesting that a congressional candidate in the 2012 race, Lisa Wilson-Foley, arrange a contract to hide consulting work he did for her campaign.