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NEW YORK, Jan 23 (Reuters) - New York state's former Republican Senate Majority Leader Joseph Bruno was indicted on Friday by a federal grand jury on corruption charges.

The indictment charges Bruno with eight counts, including mail and wire fraud, linked to his obtaining brokerage business for unions and failing to disclose hundreds of thousands of dollars of payments and gifts.

Bruno resigned his post in July 2008 after 32 years of public service, saying it was time for him to move on. He has said that the lengthy probe of his business dealings would find he had done nothing wrong, a statement he repeated on Friday.

"I did nothing wrong. I broke no laws. We were a part-time legislature," Bruno, who represented Rensselaer and Saratoga Counties, said in a statement he read to Albany reporters.

Many of the indictment's charges allege that Bruno exploited his powerful public position for personal gain, depriving the state of his "honest services."

Lawmakers cannot accept gifts worth more than $75 if they could appear to be directed at gaining influence.

The U.S. indictment said Bruno contacted people or companies with business before the legislature or state agencies, "exploiting his official position for personal compensation and enrichment, knowing and believing that his reasonably perceived ability to influence official action would, at least in part, motivate those he contacted to enter into financial relationships beneficial to his personal financial interests."

Bruno was paid $3.198 million from 1994 to 2006 by two companies and three individuals, via their firms, the indictment said. It further charged that Bruno did not fully disclose his business dealings to the legislature, nor tell some of the companies that he had failed to do so.