TATWA SIDDHANTHA
In this creation, everything follows an order. At certain times human births take place. At some other times the animals, the birds, the trees etc. are created. In human births, the male and female births follow a certain order. Time is under the control of the five bhutas. As per the order of the bhutas, the names of the weeks are formed. Sun (Ravi) and Mars (Mangal) areTejo tatwa planets. On Sunday and Tuesday ( Mangal ), certain period of time after Sunrise is under the control of Sun and Mars. Knowing this ancient rashies named these weeks after Sun and Mars. Monday (Soma) follows the Jala tatwa planet of Soma (Moon). Wednesday (Budhavara) follows Buddha tatwa planet Mercury(Buddha), Thursday(Guruvara) follows Akasha tatwa planet Jupiter(Guru),Friday(Sukravara) follows jala tatwa planet Venus(Sukra),Saturday(Sanivara) follows Vayu tatwa planet Saturn(Sani). In these weeks certain period of time from the Sunrise is under the control of the lords of these weeks. The rest of the time...