I am non-EU citizens and understand that I have to pay tuition fees for studying in Denmark.
Appreciate if someone can advise whether there are banks/government offer study loan for international students.
As you noticed, non-EU/EEA citizens pay full tuition, in order to study in Denmark. Currently, the only scholarship scheme for citizens from outside EU/EEA; is the Cultural Agreements, which are available only to citizens from Russia, China, Israel, Egypt and Japan.
Beside this, the Universities have a very limited number of "free spots", which they administer themselves.
regarding banking/government loans, I have not heard of anything, specifically aimed at international students. My best advice would be for you to check out the options for financial support/aid in your country of origin.