The purpose of this study is to analyze the quantitative growth in the collection of books and journals in Mumbai University Library. The descriptive research method was used to study quantitative growth in collection. The study also aimed to find out the ratio of library annual budget to the total budget of University of Mumbai and the ratio of library registered users to the circulation statistics. Data about library budget, university budget, newly added books, library registered users, and circulation for the years 2001 to 2011 was collected from the annual reports and library records. Findings from the study concluded that quantitative growth in the collection of books does not show consistency during the period under study.