The Grahas, except Mangal, if they occupy inimical Bhavas, lose a third of their contribution. The eclipsed Grahas lose half of their contribution except Sukr and Sani. Those, that have lost in war between Grahas lose one third. The luminaries lose 1/12^th, if they join the nodes.

Notes: There is no reduction for Mangal even, if he be in an enemys Bhava. Surya is the Grah, that combusts others. Hence, the half reduction does not apply to him apart from Sukr and Sani (as Sukr and the Sani do not lose their rays even, if they are combust (vide Uttarakalamrita). Lastly, Surya and Candr do not involve in war between Grahas; as such no reduction applies to them on this count. Mangal is strong even in his enemys Bhava.

The contribution in number of years by Lagn equals to the number of Navamshas it has passed, when counted from Mesh. If Lagn is strong and occupied by a benefic, the figure should be multiplied by one fourth and, if it be weak and occupied by malefics, then, the figure should be reduced by one fourth. Thus, the period contributed by Lagn should be computed.

Notes: Suppose Lagn (be it in any Rasi) falls in Vrischik Navamsh, its contribution is 8 years, as the Rasi Vrischik is the 8^th from Mesh. Further, this figure has to be modified thus:, if benefics are there or, if Lagn is strong (by way of Shad Bal calculations), the contribution 8 becomes 10, when one fourth is increased. Should Lagn be weak, or occupied by a malefic, then, one fourth is to be reduced, i.e the said figure becomes 6 only.