After the creation of Pakistan the most important task was the making ofconstitution. There were many hurdles in the way of constitution making. The status ofIslam in the state affairs was one among them. During the Pakistan movement the name of Islam was excessively used. But when the country was created the westernized leadership of Muslim League started lobbying to make Pakistan a secular state. The Ulama roused to the occasion and demanded Islamic constitution. It was known to them in advance that westernized intelligentsia will separate state and religionfrom each other. Maulana Maudoodi among the religious intelligentsia played an active role in Islamizing the constitution. He rendered remarkable services for this purpose. The paper is an attempt to highlight valuable services ofMaulana Maudoodi briefly andconcisely. Key Words: Pakistan, Islam, Constitution, Westernized Leadership, Ulama, Maulana Maudoodi.