Halal ink: Muslim-majority Indonesia set for polls

Dipping their fingers in halal ink to prevent double voting, Indonesians cast their ballots Wednesday in a bitterly contested presidential election, with the main rival to incumbent Joko Widodo already threatening to challenge the result over voter-fraud claims.

The Muslim-majority nation's biggest-ever polls -- with more than 190 million voters and 245,000 candidates vying for the presidency, parliament and local positions -- is largely a referendum on Widodo's infrastructure-driven bid to rev up Southeast Asia's largest economy.

But, looming in the background, two decades of democratic gains are at risk of being eroded, analysts said, as the military creeps back into civilian life under Widodo, and his trailing rival Prabowo Subianto, a former general, eyes reforms that harken back to the Suharto dictatorship.

If he loses, Subianto's camp has already warned it will challenge the results over voter-list irregularities.

"It's high stakes in this election," said Evan Laksmana, a senior researcher at the Jakarta-based Centre for Strategic and International Studies.

"We simply don't know what (Subianto) would do if he won and we don't know if the institutional constraints in place would contain him."