Since this is a non-Unicode font, you may need a converter or a specific keyboard layout (like the MCL Mangai keyboard layout ) to type correctly. Tools like Azhagi+ are excellent for converting Unicode Tamil text into MCL format.
MCL Mangai is a popular Tamil font designed by M.C. Louis, a well-known font designer from India. The font is widely used for printing and digital purposes, especially for Tamil language content. mcl mangai font download