Significant efforts have been made on the recognition of speech and then it has become the important type of input for the computers as well machines. Latin scripts are easy to recognize and significant advancements regarding the speech recognition have been made. Arabic and its related languages like Sindhi are still lacking the speech recognition systems. An integrated system for Sindhi language is the need of time. This paper presents the challenges posed by various scripts and speech recognition system of Sindhi as a general. The challenges faced by researchers around the world specially for developing a system for Sindhi speech recognition system. The paper is organized as introduction followed by various challenges pose in developing speech recognition systems.