The Rashi is the sign in which Moon was placed at your birth time. It's also called the Moonsign. The Moonsign is one of the most important points in Vedic Jyotish. Considerations like the planetary dasha, transits etc. are made in reference to the Rashi.
Prof. Sudhi Kant Bhardwaj, renowned scholer of Astrology, presently based in delhi has made it his mission to propagate Astrologgy in its purest Vedic from and to harness it for the walfare of humanity.