This article examines the revival of Sufism and mysticism by the Sindhi separatist movement in South Pakistan. It explores the emergence of a network of young intellectuals from rural and mostly peasant background, and focuses on two pioneers of Sindhi nationalism and Sufi revivalism: G.M. Syed and Ibrahim Joyo. Influenced by Gandhian as well as Marxist ideas on social reform and national identity, these two leaders transformed the annual urs celebration at local shrines into commemorations of the martyrs of Sindh. The article traces their relationship as well as their pioneering role as political leaders, education reformers, and teachers. Analysing their ideas as a particular form of Islamic reform, the article discusses the way they adapted and innovated existing cultural ideas on Islamic nationalism, ethnicity, and social justice.