Meaning of Mesh Rashi
Mesh is the 1st Rashi of the Vedic zodiac, a movable fire sign ruled by Mars. In the Kalapurusha, the cosmic body from which signs are assigned to parts of the body, it corresponds to the head.
Traditional texts associate Mesh with initiative, directness, courage and physical vigour. Because Mars rules the sign, the strength and placement of Mars in a chart shape how planets in Mesh behave.
Nakshatras in Mesh
Mesh covers 30 degrees of the zodiac and contains parts of three Nakshatras. Each Nakshatra has four padas, and Mesh holds nine padas in total.
Exalted and Debilitated Planets in Mesh
Sun is exalted in Mesh, at its strongest around 10°. Saturn is debilitated in Mesh, at its weakest around 20°.
Exaltation and debilitation apply to the seven classical planets. Traditions differ on the signs of Rahu and Ketu.
Mesh Rashi in a Kundli
Your Rashi is Mesh if the Moon was in Mesh at your birth. This differs from having the Sun in Mesh, which gives a Mesh Sun sign, and from having Mesh rise on the eastern horizon, which makes it your Lagna. A Kundli reads all three, together with the house that Mesh occupies in your chart.
For the difference between a sign-based forecast and a personal chart, see Rashifal.