Scribus now has support for Malayalam hyphenation.
How to use
You need scribus 1.5.4 or later. It is not yet available as release while I am writing this. But once released you can get from https://www.scribus.net/downloads/
- Start a new document. Add text frames and content. You will need narrow columns to have wordbreaking contexts. For example 2 columns as I use for demo here.
- Select the text and set font as a Malayalam font like Manjari, Set the language as Malayalam.
- In Hyphenation properties, set hyphenation character as blank, otherwise visible hyphens will appear.
- Set the text justified.
- From menu Extras->Hyphenate text. Done.
Here is the output: