Mangala

Mangala
Mars
Mangala / Angaraka / Kuja / Chevaai
Devanagari	मंगल
Sanskrit transliteration	Mangala
Affiliation	Graha
Abode	Mangala loka
Planet	Mars
Mantra	Om Mangalāya Namaha
Consort	Jwalini
Mount	Ram

Mangala (Sanskrit: मङ्गल, IAST: Maṅgala) is the name for Mars, the red planet, in Hindu texts. He is the god of war, celibate and sometimes linked to god Karttikeya (Skanda). His origins vary with different mythological texts; in some, he is the son of Bhumi, the Earth Goddess and Vishnu, born when he raised her from the depths of water in Varaha avatar. In other myths, he is born from Shiva's sweat or blood drop.

Mangala as a planet appears in various Hindu astronomical texts in Sanskrit, such as the 5th century Aryabhatiya by Aryabhata, the 6th century Romaka by Latadeva and Panca Siddhantika by Varahamihira, the 7th century Khandakhadyaka by Brahmagupta and the 8th century Sisyadhivrddida by Lalla. These texts present Mangala as one of the planets and estimate the characteristics of the respective planetary motion. Other texts such as Surya Siddhanta dated to have been complete sometime between the 5th century and 10th century present their chapters on various planets with deity mythologies.

The manuscripts of these texts exist in slightly different versions, present Mangala's motion in the skies, but vary in their data, suggesting that the text were open and revised over their lives.

The 1st millennium CE Hindu scholars had estimated the time it took for sidereal revolutions of each planet including Mangala, from their astronomical studies, with slightly different results:

Mangala is the root of the word 'Mangalavara' or Tuesday in the Hindu calendar. The word "Tuesday" in the Greco-Roman and other Indo-European calendars is also dedicated to planet Mars, referring to "Tīw's Day", the day of Tiw or Týr, the god of war and victory. Tiw was equated with Mars in other Indo-European mythologies. Mangala is considered auspicious.

Mangala is part of the Navagraha in Hindu zodiac system. The zodiac and naming system of Hindu astrology, including Mangala as Mars, likely developed in the centuries after the arrival of Greek astrology with Alexander the Great, their zodiac signs being nearly identical.