Hi Siraj,
Thanks for joining us here on the Community
If you are interested in getting a student visa, I'd first suggest reaching out to your
local Irish Embassy/Consulate. Depending on your country of residence, you may have to reach out to a different embassy, as specified on the website linked above. The Citizens Information website also contains
a full section of support for coming to live, work and study in Ireland.
I hope this helps and best of luck!
Antoine