Cloud computing is an internet based paradigm which provide different computing services to millions of end users. Due to its complex distributed architecture and characteristics like dynamism and openness, it is always susceptible to faults and failures. Occurrence of faults in cloud delays the service delivery and consequently degrades the system performance. Therefore, an efficient and robust fault handling technique is always required to maintain the system reliability. Various fault handling techniques have been evolved through the years. This paper explains the various causes of faults and uncertainties and presents a brief survey on different fault handling approaches in cloud computing along with the techniques based on those approaches.