The 10th house represents career, profession, livelihood, authority, fame, public image, reputation, work environment, and relationship with the father and authority figures (Government).

Whereas the 3rd house represents communication skills, self-effort, courage/determination, short-distance travel, sales, marketing, siblings, neighbours, hobbies, mechanical skills (things we do with our hands), early education.

When the 10th house lord is sitting in the 3rd house then you would be entrepreneurial and would have the courage to do something on your own. You could follow a communication driven career such as sales, marketing, YouTubing, or writing. Or could also be in mechanical jobs, or jobs that require the skill of hands (operating tools). The nature of work could involve short-distance travel (within a city). You are likely to treat your siblings as competition.

Sun as the lord of the 10th house

If you are a Scorpio ascendant then Sun will be the lord of the 10th house. You would command respect when you speak but may come across as domineering. You would excel in the field of law or would be working for the Government. Dealing with people (sales), and working under authority would not be your strength. You would do better working alone. Your father would be adamant that you follow his directions but you would want to be independent. There might a power struggle between you and your father regarding your career. You could have some ego issues with your younger siblings too.

Moon as the lord of the 10th house

If you are a Libra ascendant then Moon will be the lord of the 10th house. A communication-driven is most suited for you. You would evoke emotions through your words and so you would excel in the field of public speaking, writing, or teaching. Your words would be therapeutic and so you could be working in the field of healthcare too. You would love to travel and learn something new at work. You would be an opinion leader, a blogger, or a YouTuber. You could excel in sales and marketing too. You would be a guide to your siblings.

Mercury as the lord of the 10th house

If you are a Sagittarius ascendant then Mercury will be the lord of the 10th house. You would be excellent at finding facts and discovering information. You would be equally good at drawing insights and connecting the dots. Doing something at a small-scale would not be your cup of tea. You would be a scientific thinker wanting to change the world. You could be working for a large corporation, or could start something of your own (business). You would be an agent of social change and would have people rallying behind you. A career in the field of technology, telecom, research, law, or social work is most suited to you.

Mercury as the lord of the 10th house

If you are a Virgo ascendant then Mercury will be the lord of the 10th house. You would be excellent at finding facts and discovering information. You would be equally good at drawing insights and connecting the dots. You would excel in a research-driven career, business analytics, journalism, finance, technology (telecom), or even astrology. You could start something of your own (business). The relationship with the siblings would be karmic so at times the communication with them may entirely breakdown before you rebuild your relationship.

Venus as the lord of the 10th house

If you are a Capricorn ascendant then Venus will be the lord of the 10th house. You carry a charming personality. You know how to make people smile just by your words You are very likely to make your passion a full-time career. A career in the field of media (TV), entertainment (movies), fashion, digital marketing, advertising, writing, blogging, or YouTubing is best suited to you.

Venus as the lord of the 10th house

If you are a Leo ascendant then Venus will be the lord of the 10th house. You carry a charming personality. You know how to make people smile just by your words. You excel in building business connections, relationships, and partnerships. You are fair at dealing with people. And so you could be working in the field of law, human resources, business development, or financial advisory (Taurus). You would also be a natural in the field of media (TV), entertainment (movies), fashion (design), digital marketing, advertising, writing, blogging, or YouTubing.

Mars as the lord of the 10th house

If you are a Cancer ascendant then Mars will be the lord of the 10th house. You are strong-willed and self-motivated. You would have a “let’s go” and a “let’s do it” attitude. You would be excellent at complex jobs that require accuracy and precision. You would be excellent at working hand tools. And would be good at building and constructing things. You could be working in the field of mechanical/civil engineering, law, finance (stock markets), or as a surgeon. If you are a writer then you would be an activist of some kind.

Mars as the lord of the 10th house

If you are an Aquarius ascendant then Mars will be the lord of the 10th house. You are strong-willed and self-motivated. You would have a “let’s go” and a “let’s do it” attitude towards work. You have strong work ethics. You would be excellent at working hand tools. And would be good at building and constructing things (civil engineer). You could be working as a fire-fighter, a soldier, an engineer (oil & gas), a surgeon, a researcher, or an archaeologist. If you are a writer then you would be an activist of some kind. You could get too competitive and end up in a power struggle with your co-workers and younger siblings. You work better alone (business).

Jupiter as the lord of the 10th house

If you are a Pisces ascendant then Jupiter will be the lord of the 10th house. Any profession that requires training, mentoring, guiding or teaching is best suited for you. You are most likely to build a career in the field of financial advisory (Taurus). You'd love share to your knowledge, and experience. And so you could also be a community leader, or a politician too. You could also do well in teaching creative skills. You would be a guide to your siblings (younger).

Jupiter as the lord of the 10th house

If you are a Gemini ascendant then Jupiter will be the lord of the 10th house. Any profession that requires training, mentoring, guiding or teaching is best suited for you. You'd be well-respected for your knowledge, experience, and judgement. Your opinion would count. You would be in a career in the field of academics (professor), business advisory, corporate training, or you would be a spiritual guru, a community leader, a government officer, or a politician. You would also be a guide to your siblings (younger).

Saturn as the lord of the 10th house

If you are an Aries ascendant then Saturn will be the lord of the 10th house. You would be a thoughtful speaker. You would carry a serious demeanor. You'd be a practical person. The nature of your work would be to uphold rules, regulations, and policies. You would excel in the field of law, research, or public service. Your work would be comprehensive. Your work would be routine-based (less travel). You are very likely to start something of your own (business) after you turn 30. The relationship with the siblings would be distant.

Saturn as the lord of the 10th house

If you are a Taurus ascendant then Saturn will be the lord of the 10th house. You would be a thoughtful speaker. You would carry a serious demeanor. You'd be a practical person. You would not give in to emotions. You would be working in the field of healthcare, law, research, or social work. Your work would be comprehensive. Your work would be routine-based (less travel). You are very likely to start something of your own (business) after you turn 30. The relationship with the siblings would be distant.

Rahu as the lord of the 10th house

If you are a Taurus ascendant then Rahu will be the lord of the 10th house. You are likely to give in to emotions while you speak. And so you may not speak with conviction. You would make a good salesperson/businessperson but you maybe guilty of over-selling the qualities of a product, or over-charging for a service. Learning to be more practical and reasonable in business should be your mantra. Travel would be a large part of your work.

Ketu as the lord of the 10th house

If you are an Aquarius ascendant then Ketu will be the lord of the 10th house. You would not be too attached to your career. You may not be attached to accumulating wealth either. You would need a strong inspiration to start a business. Your career path would be connected to spiritual growth. Since Rahu is sitting in the 9th house, you would get a lot of opportunities to travel overseas. So safe travels! The relationship with siblings would be distant.