the signature(s) a composer may use in compositions, woven into the song. It may or may not have anything to do with the composer's name. Not all composers have mudras. For example, Dikshitar's mudra is "Guruguha"
Informative textual part of a musical composition consisting of the name of the composer.
Mudra is the unique signature of a Carnatic music composer, which is woven into some or all of their respective compositions.http://www.karnatik.com/glossm.shtml Not all composers have mudras, and they do not necessarily relate to the composer's name.http://www.karnatik.com/glossm.shtml