Solution:Kalpa is called the arms of the Veda Purusha. It is for the proper application of the Vedic texts. The texts are clear, short and practical for ceremonies.
Vyakarana — It was used for the formation of the word. It also discusses the root and suffix of a word to study its meaning.
Nirukta — It gave the meaning to the usage of words.
Chandas — It was designed for the purpose of securing the proper reading and reciting of Vedic texts.
Jyotisha — It conveyed the knowledge of the heavenly bodies. It also gave some rules for calculating and fixing time for sacrifices.