GUWAHATI: NERIM Group of Institutions celebrated 70th Anniversary of Constitution of India to mark the significance of ‘Constitution Day’ and to cherish the goals enshrined in the Preamble with solemn oath on Tuesday. Director, NERIM along with Registrar, Principals of NERIM Law College and Commerce College respectively, Heads of Departments, faculty members, students and officials assembled in Central Library, NERIM and vowed to spread awareness on ‘Fundamental Duties of Citizens’ to different sections of people in society.