The protest marks the latest escalation in a growing dispute over the revision process. Opposition parties accuse Kumar of overseeing a voter roll update that could benefit Prime Minister Narendra Modi's Bharatiya Janata Party (BJP). Both the BJP and the Election Commission have rejected the allegations.
Gandhi, his sister Priyanka Gandhi, and other opposition MPs were forced into a police bus while marching toward the Election Commission office. After being released, they continued their demonstration and began a sit-in outside the building.
The row centres on a nationwide revision of electoral rolls, with opposition leaders claiming irregularities that could disenfranchise voters and tilt the playing field in favour of the ruling party. The Election Commission has defended the process, insisting it follows established procedures.