Hamirpur. National Unity Day was celebrated in the auditorium of Himachal Pradesh Technical University, Hamirpur. During this, Dean Academics Prof. Jaidev presented their views on the importance of Unity Day to the students to honor the paramount role of Sardar Vallabhbhai Patel in the freedom movement and integration into one nation. After this, the students and staff members present in the auditorium took the oath to maintain the unity and integrity of the nation. Professors and students of the technical university were present on this occasion.