Kathakbox

Tabla Vox is a contemporary term for padhant or recitation, a traditional feature of Kathak and Indian music.  Each note of the tabla corresponds to a spoken syllable (e.g., dha, dhin, ge, KiraDhit), so rhythmic compositions can be played with the tabla, spoken with the voice or danced with the feet. Tabla is as much about mental and verbal as physical dexterity, so tabla students frequently learn the syllables before touching an instrument and dancers recite compositions before dancing them. 

Rhythmic compositions can be set or improvised, but always follow a mathematical structure and are based on a time cycle which provides a dramatic punch as they end exactly on the correct beat.

This video features Padhant (the second voice) with West African percussion (the first voice)

Spoken word is a term, referring to works or performances that consist solely or mostly of one person speaking as if naturally. Musically, this is distinct from rapping, as rapping incorporates rhythm and sometimes melody, whereas spoken word is more akin to narration or speaking ast the person would in conversation. Performances generally consist of storytelling or sometimes poetry.
Further reading

List of performance poets