Hungary Visa is obtained from Hungarian representation in your country. You need to get the application form and some procedures are there to do. Please check the following links to get the procedures and Hungary Visa exemption country
Check the above link to know the procedure to apply for Schengen visa / Uniform visa short-term entry visa (C) / short term visa and long term visa for Hunagry, Visa fees for each type of visa, Validity of visa
Check the above link to know that the country who do not need a visa to travel for Hungary if they have the particular travel documents.
For more details, please contact consular department of Hungary
Phone: +36 (1) 458 1000
Office of Immigration and Nationality of Hungary – Contact address and Phone number
Address: H- 1117 Budapest, Budafoki út 60.
Phone: +36 1 4639100]