Noto Serif Malayalam
Google Fonts · Google / Monotype · 2014

A multi-weight serif designed to render Malayalam script faithfully alongside Latin, forming part of Google's universal Noto type system.
About
Noto Serif Malayalam covers the full range of Malayalam characters with thoughtful stroke contrast suited to extended reading. Its nine weights make it versatile for editorial and publishing work targeting Malayalam-speaking audiences. As part of the Noto project, it is engineered to reduce tofu — the blank rectangles that appear when a system lacks a required glyph.
Classification
Designed to harmonise with the Noto type system, this face renders Malayalam script with carefully balanced stroke contrast and traditional letterform proportions. Latin glyphs complement the Malayalam characters in weight and rhythm across the full nine-weight range.