Indian opposition leader Rahul Gandhi has been detained by police during a protest against the country's election chief. Opposition parties are intensifying their campaign over a contentious revision of voter lists. Gandhi and other lawmakers were stopped as they marched toward a protest site in New Delhi. The opposition demands the resignation of Chief Election Commissioner Gyanesh Kumar, accusing the commission of manipulating voter registrations to benefit Prime Minister Narendra Modi’s party. Critics also say the revision process risks excluding millions of eligible voters. The commission and Modi's party deny these allegations.