GAUHATI, India (AP) — Hundreds of thousands of people have started voting in India’s national elections in insurgency-wracked remote northeast amid tight security.

The multi-phase voting across the country runs until May 12 and results announced on May 16.

The main Hindu opposition, with strong momentum on promises of a surge in economic growth, appears to be leading the race to wrest power from the Congress party after 10 years in power.

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The four states covered in the second phase of voting on Wednesday include Arunachal Pradesh, which China claims as its territory.

The decades-old border dispute between India and China is not a direct election issue. The giant neighbors, who fought a bloody war in 1962, have been holding talks to settle the dispute since the 1980s.