We know that Cash Conversion Cycle (CCC) is one of the measures of liquidity management. In this paper, we made an attempt to analyse the impact of CCC on the cash management. In this study we selected five companies from Pharmaceutical Sector, including, Alchemist, Lupin, Dr. Reddy’s Laboratory, Cipla and Ranbaxy. In this study, we used the secondary data for analysis and retrieved from Capitaline database for ten years period from 2002 to 2011. Through cash conversion cycle we can easily determine the working capital requirement. Because, it considers the time gap between expenditure for the purchases of raw materials and collection from sales of finished goods prepared with such raw materials, CCC plays an important role in firm’s short term assets and liabilities as well as success of the firm.