Visa C and D
Depending on the purpose of your travel to Hungary, there are different types of visas that will apply to the occasion. Whether you are planning to go on a visit or study you will have to apply for a different Hungarian Schengen Visa, accordingly.
Visa Type C
Type C Schengen visa is also known as entry visa.
The visa entitles its holder to enter and stay in the Schengen area for not more than a total of 90 days within a six-month period subsequent to the date of the first entry. This visa may be issued for one or several entries (single entry and multiple entry visa).
This type of visa is usually issued for arrival for the purpose of taking entrance examinations, attending short term language or other courses, and for tourist purposes.
Visa Type D
Otherwise also known as national or long stay visa is granted to individuals who are to be studying, working or permanently residing in Hungary and is issued for 90 days up to maximum one year.
An application for a long stay visa for over 90 days can be submitted at a Hungarian embassy abroad. You are obliged to submit the application only at the Hungarian embassy in the state of which you are a citizen or which issued your current travel document or in the state in which you have a long stay or permanent residence permit.