Nankai University is generally called "Nanda" in Tianjin. Nankai has branches or research institutes in Tanggu, Shenzhen and Kunming. Chongqing and other places have middle schools named after Nankai formed for historical reasons.
Nanjing University, one of the 11th National Universities, was formerly the National University of the Republic of China. It has 28 national key disciplines. The advantages of Nanjing University are concentrated in liberal arts and astronomy.
Nanjing University is what we call "Nantah" most of the time.
Both schools are elegant in style, close in strong disciplines, weak in engineering and medicine, and similar in reputation.
The so-called "Nantah" is actually more than these two. For example, in Nanchang, "Nanda" is Nanchang University.