INDIANAPOLIS (AP) — Mayor Greg Ballard announced the city will vie to hold the 2012 Super Bowl, marking its second effort to secure the honor of hosting the NFL's biggest game.

"Our hat is in the ring," said Ballard at a Tuesday news conference. "Our downtown is built for an event like this."

Political and civic leaders said this year's bid would emphasize many of the same attributes as last year's bid, including the city's new retractable-roof Lucas Oil Stadium and its experience hosting major sporting events such as the Indianapolis 500.

But officials declined to comment further on what would make this year's bid more attractive, saying they didn't want to give other cities a competitive advantage.

"There are some things we will simply hold close to the vest," said Mark Miles, president of the bid committee.

Eli Lilly & Co. President John Lechleiter, who helped line up the funding commitments last year, said he was confident the city could again generate the $25 million in private dollars that were raised before the bid presentations in 2007.

"It's clear that we're poised to repeat last year's fundraising success," he said.

The new $700 million Lucas Oil Stadium scheduled for completion in August was again expected to be a centerpiece of the city's bid.

"It's not just another stadium, it's a very special facility," said Colts' owner Jim Irsay, who added that NFL owners have been visiting the 70,000-seat stadium in recent months.

Officials said securing a Super Bowl bid would reap economic benefits and international exposure for the city. Miles estimated the public cost for law enforcement and public safety during the event would run between $1 and $2 million.

Community members were encouraged to submit ideas for the Super Bowl festivities, including a 50,000-person party to be hosted on the eve of the game, via several partner Web sites that can be accessed through http://www.our2012sb.com.

In 2007 Indianapolis lost the bid for the 2011 Super Bowl to Dallas in a 17-15 vote.

"It was really disappointing when we didn't get it done last time," said Irsay, who again pledged $1 million toward the fundraising effort. "We're going to redouble our efforts and keep going forward and get it done."

The deadline for bids was April 1. Miles said that Phoenix, Houston and New Orleans were among the cities that might also vie to host the 2012 game.