The study and estimation of demand for money function has a major role in monetary policy formulation. In the back drop of financial deregulation, global financial crisis and structural adjustments, it seems imperative to reinvestigate the money demand function for Pakistan.This study tried to formulate the Divisia aggregates for Pakistan and then used both official (Simple sum) and Divisia aggregates for estimating demand for money function for Pakistan. Moreover, the study tested both groups of money demand functions for stability. The comparison of Simple sum and Divisia based money demand estimates showed that the performance of Divisia based money demand functions was better than their Simple sum counterparts. The results of simple sum and Divisia demand functions showed that interest rate has a very limited role in explaining the demand for money, while the financial innovations were playing a significant role in explaining the money demand pattern.