Social robots are gaining recognition because of their ability to interact with humans efficiently. They can comprehend, process, and respond to human behaviour, emotions, and communication with sophisticated technologies. However, trustworthiness is an important condition for establishing credibility of the robot’s responses and accepting them among users. There is a need to evaluate if social robots are satisfying the requirements necessary for obtaining and verifying trustworthiness. We have outlined State of the art on requirements for trustworthiness of social robots and found that frameworks for evaluation and design of trustworthy social robots are at an initial and emerging stage. A noteworthy framework Trustworthy and Acceptable HRI (TA-HRI) checklist is explored in the current study. The applicability of this list was examined, and authors, through their experience with social robots, introduced one main requirement as a category called ‘Validation and Reliability’ with five sub-questions. Further, the present study utilizes extended-TA-HRI checklist as a tool against the social robot Pepper to comprehensively assess its various functional and non-functional aspects towards trustworthiness in various settings. Our initial findings suggest that the framework has several strengths and weaknesses. Most notably, it is comprehensive and facilitates a process of requirements refinement for the target of analysis. Among weaknesses are a lack of role of stakeholders, prioritization, as well as a notion of the relationships among the requirements. This paper reports on the trial and summarizes the lessons learned from the application of extended TA-HRI list on the Pepper robot.