Kundli is the term used for Birth Chart in Vedic Astrology. Twelve houses of Kundli show ascendant and planet position in various zodiac signs at the time of birth as seen from the place of birth.
A horoscope (or other commonly used names for the horoscope in English include natal chart, astrological chart, astro-chart, celestial map, sky-map, star-chart, cosmogram, vitasphere, radical chart, radix, chart wheel or simply chart) is an astrological chart or diagram representing the positions of the Sun, Moon, planets, astrological aspects and sensitive angles at the time of an event, such as the moment of a person's birth. The word horoscope is derived from the Greek words Ora and Scopos meaning "Time" and "Observer". It is used as a method of divination regarding events relating to the point in time it represents, and it forms the basis of the horoscopic traditions of astrology.
In Hindu astrology, birth charts are called kuṇḍali which are very significant and are based on movement of stars and moon. Auspicious events and rituals are started after checking the kuṇḍali of a person including the marriage in which the birth charts of the boy and girl are matched.
Stars are luminous balls of hydrogen and helium gas within clouds of dust which are held together by their own gravity. They are formed through the accumulation of gas and dust which collapses as a result of gravity. Astrology attempts to study how the position, movements and properties of celestial bodies affect people and events on earth. Although it has its proponents, astrology has been rejected by the scientific community. Some horoscopes base their predictions on the “movement” of stars. However, this is inaccurate as stars actually do not move but appear to because the earth rotates on its axis and orbits around the sun. Furthermore, none of the answers given by astrology are actually based on science. According to American astronomer, the reason why people rely on horoscopes is explained by a psychological phenomenon known as “self-selection bias” which is the tendency of humans to look for interpretations or confirmations for what they already hope to be true. Hence, the reason why astrology may seem like it works is because our brains are wired to look for patterns, even when none exists. Many practitioners of astrology claim that astrology is indeed a science however, despite many trial and experiments, the effectiveness and scientific evidence of astrology is still yet to be demonstrated. In conclusion, astrology has no verifiable mechanism behind it and astrologers follow no sort of scientific method in their process hence it cannot be classified as science