Mula is nakshatra 19 of the 27 nakshatras, the lunar mansions of Vedic astrology. Its symbol is a bundle of roots, and its theme is getting to the root.
Positions in the sidereal zodiac with the Lahiri ayanamsa.
The four padas
Each nakshatra has four quarters of 3°20′. Each pada falls in a sign of the navamsa, the ninth-part chart.
Pada 1
0°00′ Sagittarius to 3°20′ Sagittarius
Navamsa Aries
Pada 2
3°20′ Sagittarius to 6°40′ Sagittarius
Navamsa Taurus
Pada 3
6°40′ Sagittarius to 10°00′ Sagittarius
Navamsa Gemini
Pada 4
10°00′ Sagittarius to 13°20′ Sagittarius
Navamsa Cancer
Mula and your dashas
If the Moon was in Mula when you were born, your Vimshottari dashas start with a Ketu period, which lasts 7 years in full. You start partway through it, by how far the Moon had travelled through Mula.
Is Mula your birth star?
Your birth star is the nakshatra the Moon was in when you were born. The Moon moves into a new one about once a day, so it takes your birth date, time and place.