http://solvedanswerkey.in/ossc-la-mains-answer-key-2020-odisha-ssc-laboratory-assistant-mains-exam-paper-sheet/ <<<Download Link. Odisha Staff Selection Commission [OSSC] OSSC has successfully conducted the Laboratory Assistant 2016 Main Written Examination on 09 February 2020 from 10:00 am to 12:00 pm at various examination centers in Bhubaneswar district. A large number of candidates who passed the preliminary written examination of Laboratory Assistant appeared in the main written examination. After the written examination, all the candidates are searching for OSSC Laboratory Assistant Answer Key [Answer Key / Answer Sheet] through online internet. All the candidates are advised to give priority to the official answer key.