https://smconlineedu.in/tnusrb-si-answer-key-13-january-2020/Tamil Nadu Uniformed Services Recruitment Board will be uploading the TNUSRB SI Answer Key on the official website or you can find a direct link to 1st Shift TNUSRB SI/Sub Inspector Answer Key 12 Jan for all the exam dates. The Candidates will be able to roughly calculate their marks and can get an idea about their possibilities. Tamil Nadu USRB Department will be releasing answer keys to all the sets of question paper in the online mode