Education system has changed in many ways over the last decade, with the most important change coming in mode of learning and examination. Educational institutions are slowly moving into online teaching and education, which in a way, is changing the perception of learning among students and parents. Students often raise a query about which is better, online or offline exam. Online learning, e-learning, electronic teaching tools, and digital assessments are not innovations. However, there has been limited implementation of online invigilated examinations in many countries. This paper describes a system which implements blockchain along with could communication platform as a service, to monitor the authenticity of the document uploaded by the students at a specific period of date and time. The system will use the AES symmetric block cipher and SHA-256 hashing algorithm to safeguard the question papers and answer sheets respectively. As a result, the system will also ensure organizing the exams offline with the help of cloud service used as SMS. Furthermore, it will also not use the system time to track the submission of the system as it can be changed.