Auditorium is a central and important space in any institution luck enough to have one. Senthamil College auditorium is a well built spacious auditorium. One side fully closed wall with stage and two rooms with all facilities. Other three sides with semi closed walls. Situated in the first floor of Pandian Library. Area of auditorium is 5000 sq.ft. It was built and stared in the college diamond jubilee year 2018-19. Good and effective lighting, airy and sound system which enables 600 persons to hear and watch performance at a time.