A day-long national seminar on philosophy, science and technology will be held at Satya Nilayam Research Institute in Thiruvanmiyur on January 9. Prof Sreekala M Nair, head, department of philosophy, Sree Sankaracharya University of Sanskrit in Kerala and member, ICPR and Prof S Ignacimuthu, director of Entomology Research Institute, Loyola College, are scheduled to inaugurate the seminar.