However, the growing demands of engineers in other areas outside of petroleum led to the expansion of the school curriculum, and the school again changed its name in 1934, this time to the "Azerbaijan Industrial Institute (AzSI)", since it was combined with civil engineering. The Second World War put a lot of pressure on the Soviet Union, and schools like AzPI tried to remain open.
In 1950, the government established a separate "Azerbaijan Polytechnic Institute (AzPI)" and transferred non-petrochemical curricula to a new school so that AzSI could focus on the petroleum industry. (AzSI continued to eventually become the "Azerbaijan State Oil Academy".) In 1970, the branch of AzPI was established in Ganja.