Complex sentence: The foundation stone of the building was laid down on March 14,1990 and when completed it.will have an academic block with modern research laboratories, seminar rooms, spacious library, audio-visual department and an auditorium for 500 persons with a gallery in it.
Split into simpler sentences: The foundation stone of the building was laid down on March 14,1990 and when completed. It will have an academic block with modern research laboratories seminar rooms, spacious library, audio-visual department and an auditorium for 500 persons with a gallery in it.