Today, 3rd house lord sitting in 7th house.

So first of all, let's see what 3rd house and 7th house represent -

3rd house - It is house of your communication skills, neighbors, short distance travels, younger siblings, marketing, announcements, collecting information, hobbies and skills, self-efforts, business, courage etc. At the same time, as 3rd house is house of efforts, this house shows that results of this house will come only when person will put lots of efforts for a long time.

7th house is house of market place, other people (masses), business partnerships, agreements, marriage, spouse, marital happiness etc.

Now, what does it mean to have 3rd house lord sitting in 7th house?

It means the planet which rules/controls/owns the 3rd house of your horoscope is sitting in the 7th house of horoscope.

Now, what is the impact of having 3rd house lord sitting in 7th house?

Its generic interpretation is that this person's communications and skills will be developed when he interacts with masses. Communications are very necessary in this case for relationship, else the relation won't survive. These people get more interested towards their hobbies or they realize their skills only when they come into relationships. As 2 houses related with Business are connecting, it shows the strongest of indication for a Businessman.

Now, results may be different due to aspect, conjunctions of other planets or the planet being Retrograde or Combust. Moreover, now we also need to check the strength of 7th house lord as 3rd house lord is going in 7th house. So again, Overall Chart Reading is important.

So, let's see how different planets will behave differently as 3rd house Lord in 7th house.

Sun - Suppose it is a Gemini Ascendant chart and Sun rules the 3rd house with Leo sign and sits in the 7th house in the sign of Sagittarius. It shows that native's father or sibling will have lots to do with this person's marriage. Also to see that Fiery Sun is in a Fire Sign. So, there is a strong indication that relationship may get burnt up due to the ego of either/both side. Father of native may be interfering in relation. At the same time, it can give a spouse who is religious and inclined towards higher learning. But both sides need to work on their Ego.

Moon - So it is Taurus Ascendant Chart and Moon rules the 3rd house with Cancer sign and sits in 7th house in Scorpio, where it is debilitated. If Moon is close to real degrees of debilitation, this shows that native's mother will interfere in marriage up to an extent that it might even ruin the relation. Native's own mind is stuck up in dealing with issues between Mother and Spouse and feels drained. All parties need to work sensibly to restore sanity in relation.

Mars - Mars can be 3rd house ruler through its two signs. So, let's take both one after the other.

Aquarius Ascendant - So if it is Aquarius Ascendant, Mars rules 3rd & 10th house and sits in 7th house in Leo sign. This is one of those Mangalik positions of Mars and it becomes necessary that person should marry another Mangalik. If it is done this position can turn up as a good one where spouse has a very dynamic personality and protective nature. Else it may lead to arguments, fights and even physical abuse in some cases as Mars is a natural malefic planet, hence it will have one or the other malefic result in 7th house.

Virgo Ascendant - Now if it is Virgo Ascendant, Mars rules 3rd & 8th house and sits in 7th house in Pisces sign. Consideration of being Mangalik remain same. Additionally, spouse can have real spiritual bent of mind and will be like a spiritual guidance to the native. Mangalik Matching is necessary here too. Lots of things written about Mangalik being bad for marriage but in my experience of looking at charts and following life of my clients, Mars is the last planet that gets involved in divorce matters.

Mercury - Mercury also can be 3rd house ruler through its two signs. So, let's take both one after the other.

Aries Ascendant - If it is Aries Ascendant, Mercury rules 3rd & 6th houses and sits in 7th house in Libra. Now, this person really wants to talk his heart out in relations. Most painful for them is to marry someone who is a quiet person. As 2 houses of business and planet of business is getting involved, this is the best indication of someone getting into business.This is also an indication of an author, journalist or a blogger who connects with masses through his writings. But communications is must in relations else they will feel suffocated.

Cancer Ascendant - If it is Cancer Ascendant, then Mercury rules 3rd & 12th house and sits in 7th house in Capricorn. As Mercury is still in a friendly sign, the condition of communication in relation will remain as is but as Capricorn is ruled by Saturn, it shows a delayed marriage for person and communications getting restricted in relationship. In this case, person starts getting good results of 7th house and Mercury only in his 30s. Till then it is just hard work on relationship, communication and business.

Venus - Venus also can be 3rd house ruler through its two signs. So, let's take both one after the other.

Pisces Ascendant - If it is Pisces Ascendant, Venus rules 3rd & 8th house and sits in 7th house in Virgo sign, where it is debilitated. If Venus is near to the real degree of debilitation then this position shows someone who has lack of love interest in relationship. It means their relationship is not based on some bollywood romantic movie but on realities of life like Bank Balances, Responsibilities, Finance, etc. So, it may not be the most loving relationship but it will be a long lasting one as it is based on practicality, specially if Venus is in Virgo again in Navamsha which makes it Vargottama.

Leo Ascendant - If it is Leo Ascendant, Venus rules 3rd & 10th house and sits in 7th house in Aquarius. This is far better position for Venus in matters of love, but as Aquarius is again ruled by Saturn, here also marriage may be delayed till 30s. If these people get married early, they will find it hard to communicate and receive the love from other side. At the same time, this position is good for creativity and they will be interested in pursuing some creative business. But again, all good results will be seen in 30s only.

Jupiter - Jupiter also can be 3rd house ruler through its two signs. So, let's take both one after the other.

Libra Ascendant - If it is Libra Ascendant, Jupiter rules 3rd & 6th house and sits in 7th house in Aries Sign. As Jupiter represents knowledge, wisdom and guidance, this is one of the best positions in 7th house. Especially a girl with this sort of placement should feel herself very lucky. Here spouse becomes the guiding force and source of wisdom. It also shows good wealth from spouse and happiness & luck in married life.

Capricorn Ascendant - If it is Capricorn Ascendant, Jupiter rules 3rd & 12th house and sits in 7th house in Cancer, where it is exalted. The best position for marriage and married life. Exalted Jupiter in 7th house of marriage, what else you need for a good married life? Every happiness related with marriage and married life will be at person's door step. There is nothing much to say when things are so good.

Saturn - Saturn also can be 3rd house ruler through its two signs.

In either sign (Capricorn/Aquarius) as 3rd house lord, Saturn in 7th house (for Scorpio/Sagittarius Ascendants respectively) shows that marriage will be delayed till the age of 30 at least. Relationship will be based on practicality and reality of life. Couple would feel cold feelings towards romantic side of marriage but good for long standing marriage. As Saturn doesn't give anything easily, it also doesn't take away anything easily. It means getting a divorce is equally a hard task in such cases. So, it is better to delay the marriage till 30s in this case and then live the relationship based on all the maturity, reality and seriousness of life, then it lasts long.

Rahu - If Rahu is 3rd house Lord through its sign Aquarius, as it co-rules Aquarius along with Saturn, and sits in 7th house in Gemini sign then 1st of all we need to make sure of Saturn's position as it is the main ruler. Rahu in Gemini in 7th house makes a person a highly clever and cunning businessman. They can even fool people to run their business successfully. They always have a habit of speaking a lie or two as Rahu is illusion and Gemini is sign of communications. No matter how obsessive they are in getting into relation, same thing goes with their marriage as either they or their partner always feel that there is something fishy in marriage, means there is constant fear of cheating in marriage. But at the same time, these people can not be away from a relationship, that's why they get into relations one after the other.

Ketu - Likewise, If Ketu is 3rd house Lord through its sign Scorpio, as it co-rules Scorpio along with Mars, and sits in 7th house in Pisces then 1st of all we need to make sure of Mars' position as it is the main ruler. As Ketu isolates/separates a person from the things related to the house Ketu is sitting, here it actually separates person from the concept of being in relation. They are not one of those who are looking out for their first or next partner. They are quite content and spiritual about themselves and their relations. Actually in the sign of Pisces, Ketu is most peaceful so this sort of result is least possible when Ketu is in Pisces, but it remains a possibility with Ketu in 7th house always that person is disinterested towards relations. The only way relation can survive in such cases is that couple becomes highly spiritual in matters of relations, means they are happy with whomsoever they marry with no expectations at all.