Vedic Astrology utilizes various strategies and recipes for assessing the qualities, qualities and shortcomings of planets in the conception chart. One of these systems is the utilization of “Vargas” or Divisional Charts, at times alluded to as Sub charts, or Harmonic Charts. These charts are each made by applying a particular numerical method to the first information gave by the Birth Chart. Each divisional chart is then used to help interpret a particular piece of life.
The most essential of these Harmonic Charts is the Navamsha Chart. It is figured by separating the 360 degree zodiac into 108 equivalent sections. Consequently the measure of every fragment winds up being 3 degrees and 20 minutes of circular segment. There are 9 fragments in every 30 degree zodiacal sign, consequently the name Navamsha, taking into account the sanskrit word “Nav” significance Nine. Each amsha or division is credited to a specific sign, after one another in the normal request of the zodiac. Consequently the first division goes from 0 degrees Aries until 3 deg, 20′ and is called “Aries navamsha”, the 2nd division from 3 deg, 20′ to 6 deg, 40′ gets to be Taurus navamsha, the following one is Gemini, et cetera. When you get to Pisces the 12th division, the following one is Aries once more. The succession of 12 zodiacal signs rehashes itself 9 times to finish the greater part of the 108 fragments in the zodiac

Every planet and imperative point, (for example, the Rising Degree) winds up in a specific place in the Navamsha Chart, which is typically not quite the same as the sign and house it involved in the Birth Chart. The new chat built by this procedure is then deciphered by principles and rules portrayed in the antiquated writings. The navamsha graph is utilized as a part of various ways. What takes after is a portrayal of a portion of the normal applications.
It is typically utilized amid expectations about marriage of the native, mate, wedded life and so forth but at the same time is valuable to know qualities of the native furthermore his/her companion in much detail.

For a planet set in a Movable sign (Chara Rashi) numbering begins from the sign itself, in altered sign including begins from ninth and double sign checking begins from fifth from where the planet is set. Planets in the first Navamsa division. Chara Rashi, fifth division in the settled sign (Sthir Rashi) and ninth division in Dual Rashi are Vargottoma.

In Vedic Astrology the Navamsa or ninth Harmonic chart (D9 graph) is said to be a minute perspective of the ninth House and accordingly the concealed undercurrent of our destiny. It is fundamentally to foresee marriage life of the local, mate and life in later stage (following 32 years). The rasi graph (D1 chart) is your physical presence, the circumstances you live in, the things you do. The D9 chart is the shrouded power, imperceptible hand of predetermination that chooses the after-effects of your deeds. 
D9 chart essentially gives data about your internal identity. The D1 chart gives data about your surface identity. The inward identity continues changing until late twenties and remains just about the same after that. In this way, it’s fitting to counsel D9 chart in the later phase of life.

D9-chart is also used for marriage predictions.

Generally the navamsha chart is utilized to break down a man’s marriage prospects. The conception outline’s 7th house is what is regularly analyzed for relationship karma. Checking how well the planetary leader of the 7th house admissions in the navamsha graph evaluates the inward quality of the master of the marriage house. Presently another measurement can be included by dissecting the 7th place of the navamsha chart and its ruler. It has been found that in an expansive extent of fruitful relational unions the 7th house ruler in the navamsha graph of every accomplice is a conspicuous planet in alternate accomplices’ natal chart.

See the position of D9-ascendant ruler in D9 chart.

This will indicate how the native innately acts with his/her mate.

In the event that it is set in

Sixth house: native will have a tendency to battle with his/her life partner.

Eighth house: native will conceal the things from his companion and won’t be straightforward.

Twelfth house: The native would be aloof for his or her life partner.

See the arrangement, quality, conjunctions of the D9 ascendant ruler in D1 chart.

This will issue you the data about, how the native acts with his life partner before the entire world.

Spouse ought to be seen from seventh place of D9 chart. By what method will he/she acts with the native.

Apply the past 2 steps moreover.

D9-ascendant aspected by a benefic can give an upbeat wedded life.

D9-ascendant ruler aspecting D9 is a decent blend for a tranquil wedded life.

If D9-ascendant happens to be ninth or twelfth to the D1-ascendant, physical needs may be high.

If D9-ascendant is connected with numerous malefic, there could be additional conjugal there will more extra marital affairs

If the master of 3 or 6 or 7 or 10 is set in the seventh to D9-ascendant your life partner may have a profession in law.

Venus in the seventh to D9-ascendant shows disharmony in marriage.

If the ruler of seventh in D1-chart is in 6 or 8 or 12 to D9-ascendant, wedded life may not be lovely.

Conjunction of Moon and Venus and if one of them is weakened, there will be no joy from marriage.

If the fifth from the D9-ascendant is possessed by Jupiter and Venus, you could get bewitching magnificence as your wife.

If the seventh happens to be the place of Saturn and if malefic are in it, the life partner could look old or it could be a second marriage.

If Venus is in the amsa of Mars or in the place of Saturn with no benefic viewpoint, there could be sexual depravities.

If the seventh ruler conjuct with the sixth master furthermore Venus, there will be division or separation.

These are some general standards. If it’s not too much trouble consider the viewpoint and conjunction of different planets before arriving any conclusion