When the students were barred last month from entering their classrooms and told not to wear hijab, a headscarf used by Muslim women, they began camping outside the all-girls high school. The story cascaded across the internet, drawing news crews to the front of the government-run school in Udupi district, in the southern Indian state of Karnataka. Battle lines were swiftly drawn. The students began protesting outside the school gate and sat huddled in a group, reading their lessons. The school staff, which said the students were defying uniform rules, remained unmoved.