There has been an increase in the number of mobile phone users in India by 300 million in the past 6 years, according to the statistics portal. With an increase in the number of handsets owned by people, the number of defective handsets has also increased. To cater to the needs of customers, a market of mobile phone repairers has also emerged. Through our study we found that mobile phone repairers come from different backgrounds and have different levels of skill. There is a lack of a framework or guidelines that address the knowledge that mobile repairers should have to enter the mobile repairing domain. Hence, in this paper we have tried to understand the work of mobile repair using a Cognitive Work Analysis (CWA). CWA is a framework for understanding how complex work is conducted. The CWA analysis helped us to identify various processes and knowledge bases used by the mobile repairers in their work.