Vedangas
Vedangas (Samskrit : वेदाङ्गम्) literally meaning 'limbs of the Veda' are the six angas or explanatory limbs to the Vedas. They include Shiksha (authored by various rishis), Vyakarana of Panini, the Chandas of Pingalacharya, the Nirukta of Maharshi Yaska, the Jyotish of Lagadha and the Kalpas (Shrauta, Grhya, Dharma and Shulba) belonging to the authorship of various Rishis. Refer: Shad Vedangas (षड्वेदाङ्गानि) - Dharmawiki