1. The petitioner is aggrieved by the order dated 03.08.2018 passed by the Central Administrative Tribunal, Principal Bench, New Delhi, dismissing OA No.2083/2014, filed by him challenging his debarment order dated 16.01.2014 issued by the respondent no.1/Union Public Service Commission (UPSC), whereby his candidature for the Civil Services Examination 2012 (in short, ‘CSE 2012’) was cancelled and he has been debarred from appearing in all the examinations to be conducted and the selections to be made by the UPSC for a period of 10 years, reckoned from 13.01.2014.

2. The present case has a chequered history. The petitioner who states that he is suffering from Obsessive-Compulsive Disorder (OCD) had participated as an OBC candidate on seven occasions in the CSE Examination conducted by the respondent no.1/UPSC between 2004 to 2010. While he did not qualify in the preliminary examinations for the CSEs 2004 & 2005, he had qualified in the preliminary examinations for the CSEs 2006, 2007, 2009 & 2010 but failed to qualify in the main examinations. As for the CSE-2008, the petitioner had qualified in the preliminary examinations and the main examinations, but after appearing in th