Protesters opposed to India's sweeping revisions of its voter rolls have been trying to rally in New Delhi, and police have responded with a heavy presence on the streets. Officers were positioned in large numbers around the areas where demonstrators planned to assemble, a sign authorities wanted to keep the gathering contained. The revisions, which redraw and correct electoral rolls on a large scale, have alarmed activists and opposition figures who fear legitimate voters could be wrongly removed from the lists. Organizers have framed their campaign as a defense of electoral integrity rather than opposition to routine administrative work. Preventive detentions have already kept some protest leaders from reaching earlier gatherings in the capital. Police have given no indication they will allow the rally to proceed, and protesters have kept looking for ways to meet anyway. How the standoff plays out could shape the wider dispute over the voter rolls.