1) Art material 2) Black pigment 3) Certain pen filler 4) Drawing fluid 5) Drawing medium 6) Indelible liquid 7) Lettering liquid 8) Pen filler Found on https://www.crosswordclues.com/clue/india-ink
India ink (or Indian ink in British English) is a simple black ink once widely used for writing and printing and now more commonly used for drawing, especially when inking comic books and comic strips. Indian ink is also used in medical applications. == Composition == Basic India ink is composed of a variety of fine soot known as lampblack, combin... Found on http://en.wikipedia.org/wiki/India_ink
black pigment in the form of sticks that are moistened before use in drawing and lettering, or the fluid ink consisting of this pigment finely ... [3 related articles] Found on http://www.britannica.com/eb/a-z/i/16