| Department / Unit | Diploma Courses |
| * | Department of English Language Teaching | Diploma in Business English |
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| * | Department of Economics | Diploma in Microfinance (DMF) |
| | Diploma in Travel &Tourism Economics and Hotel Management (DTTEHM) |
| | Diploma in Economic Development (DED) |
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| * | Department of English | Diploma In Advanced English For Administration And Academic Purposes (DAE) |
| | Diploma in English for Teachers of English (DETE) |
| | Diploma In English For English Medium Instruction Teachers (DEEMIT) |
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| * | Department of Geography | Diploma In Geographical Information Systems (GIS) |
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| * | Department of Sinhala | Diploma in Sinhala |
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| * | Journalism Unit | Diploma in Journalism |