Your Moon sign is the sign of the zodiac in which the Moon was placed at the time of your birth. This is also known as the Janma Rashi or the Birth Sign in Vedic astrology. If for example, the Moon was in the sign of Leo at the time of your birth then your Birth Sign ( Janma Rasi) would be Leo or Simha. Your Moon sign may offer you more clues about your future when compared to your Sun Sign. This is since the Moon moves much faster through the zodiac when compared with the Sun.
If you do not know your Moon sign, check it here using this calculator from drikpanchang.com: Moon Sign Calculator