In Jaimini’s degree-based karaka system, each planet (Sun through Saturn) represents the people in your life. I already covered the AtmaKaraka as the indicator of self, but the Darakaraka is the indicator of your spouse. By examining your Darakaraka you learn a great deal about the characteristics of the person you marry.
Though the natural karakas (significator) of a husband and wife is Jupiter and Venus, the DaraKaraka is specific to you. Anyone looking for a wife will want qualities of Venus, but the DK will show the other, more individualistic qualities they seek. Likewise, Jupiter represents the qualities of a good husband (knowledge, forgiveness, virtue, honesty, etc) but the DaraKaraka shows the unique nature of your husband.
How to find your DaraKaraka
The DaraKaraka is the planet in your chart that holds the lowest degree out of all planets (Sun through Saturn). When you calculate a birth chart, each planet has a degree number next to it. Identify which one holds the lowest degree and that planet is your DaraKaraka. This should be very easy, but if you have questions feel free to ask.
The house and sign your DK is placed in shows the kind of person your spouse is and part of the fulfillment you get from them. For example, mine is the Moon in the sign of Scorpio, and it’s in the 12th house. My husband is a Cancer (ruled by Moon) but his moon is also in Scorpio, and his Sun and Lagna lord are in the 12th house. All kinds of techniques can be applied to this planet to judge whether they are a source of frustration or more of a benefit to your life.
Here are the individual meaning of each planets: