Ancient Indian astrology is popularly referred to as Vedic astrology. This is not because it is there in the Vedas. There is no mention of astrology in the books of Vedas However, it is one of the Vedangas, i.e., limb or branch of Vedas, and dates back to the Vedic period. Several of the Poojas and remedial measures prescribed in the Indian astrology are as per the Vedic system. Hence, it is called Vedic astrology.
The Vedangas are six in number. They are Siksha or phonetics, Kalpa or ritual, Vyakarana or grammar, Nirukta or etymology, Chhandas or metrics and Jyotishya or science of astronomy and astrology horoscope. These are mentioned in the Upanishads.
It is impossible to ascertain the exact time of origin of our Indian astrology. Even the most famous historians differ wildly, from 1200 BC to 2500 BC while trying to fix our Vedic period. A lot of them, especially the westerners, still study India based on the Mohenjodaro and Harappan discoveries, which were discovered in the 1920’s!! Several archaeological discoveries of recent times date our culture to 7500 BC, making it the ancient most civilization in the world.