Houses, Planets and Body parts

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Friends, this is the 115^th article of your friend Nikhil and trust me after decades of experience in this field, I now realized that forget about the beginners but even established astrologers are confused, when it comes to one of most basic topics of Astrology i.e. “Planets, Houses and Body parts”. I even found that most of the websites on internet are also spreading confusion on this topic. Frankly speaking, your friend Nikhil was astonished to see that the concepts which are most basic in nature are surrounded by the maximum level of uncertainty. This state of affairs is really unfortunate for the growth of Astrological science as a whole. Anyways, I will now clear all the possible dust around this topic so that every beginner as well as even an established Astrologer has the utmost clarity on this topic.

Before starting with the concept listing process, please REMEMBER that following concepts has to be applied as per the CUSP CHART and NOT lagan chart. In short, the cusp corresponding to each of the 12 houses must be divided into 3 equal parts and then the following concepts should be applied. For example if a length of a cusp is 24 degree, then each part would be of 8 degrees, if a cusp length is of 15 degrees then each part would be of 5 degrees, if a cusp length is of 51 degrees, then each part would be of 17 degrees. If the cusp length is not divisible by 3 then derive the length of each part in both degrees and minutes (1 degree= 60 minutes). So suppose, if the cusp length is 34 degrees, then each part would be of 11 degrees and 20 minutes.

Currently, for your easy understanding, I am assuming that each cusp is of 30 degrees, that’s why dividing 30 by 3 will give me each part of 10 degrees.

Now, let’s begin with the concepts.

1^st house (Use 1^st Cusp):

Head (0-10 degrees)
Neck (11-20 degrees)
Pelvis (21-30 degrees)

2^nd house (Use 2^nd Cusp):

Right Eye (0-10 degrees)
Right Shoulder (11-20 degrees)
Reproductive or generative organ (21-30 degrees)

3^rd house (Use 3^rd Cusp):

Right Ear (0-10 degrees)
Right Arm (11-20 degrees)
Right Testicle/Ovary (21-30 degrees)

4^th house (Use 4^th Cusp):

Right Nostril (0-10 degrees)
Right side Ribs (11-20 degrees)
Right Thigh (21-30 degrees)

5^th house (Use 5^th Cusp):

Right Cheek (0-10 degrees)
Right side of the Chest (11-20 degrees)

Please note, the chest is the part of your body between your neck and your abdomen (belly). The medical term for your chest is thorax. Chest includes the following:

Esophagus, the tube between your mouth and stomach
Trachea, your windpipe
Bronchi, the tubes that carry air from your windpipe to your lungs
Lungs
Breast
Pleura, a thin layer of tissue that covers the lungs and lines the inside wall of the chest space
Heart and large blood vessels
Thymus, a gland that’s part of your immune system

3. Right Knee (21-30 degrees)

6^th house (Use 6^th Cusp):

Right Jaw (0-10 degrees)
Right side of the Belly or Abdomen (11-20 degrees)

Please note, Belly or abdomen is that part of the body that contains all of the structures between the chest and the pelvis. The belly (or abdomen) is separated anatomically from the chest by the diaphragm, the powerful muscle spanning the body cavity below the lungs. The belly or abdomen contains a host of organs including:

Stomach
Intestine
Colon
Rectum
Liver
Spleen
Pancreas
Kidneys
Appendix
Gallbladder
Bladder

3. Right Calf (21-30 degrees)

7^th house (Use 7^th Cusp):

Mouth (0-10 degrees)
Navel (11-20 degrees)
Feet (21-30 degrees)

8^th house (Use 8^th Cusp):

Left Jaw (0-10 degrees)
Left side of the Belly or Abdomen (11-20 degrees)

Stomach
Intestine
Colon
Rectum
Liver
Spleen
Pancreas
Kidneys
Appendix
Gallbladder
Bladder

3. Left Calf (21-30 degrees)

9^th house (Use 9^th Cusp):

Left Cheek (0-10 degrees)
Left side of the Chest (11-20 degrees)

Please note, the chest is the part of your body between your neck and your abdomen (belly). The medical term for your chest is thorax. Chest includes the following:

Esophagus, the tube between your mouth and stomach
Trachea, your windpipe
Bronchi, the tubes that carry air from your windpipe to your lungs
Lungs
Breast
Pleura, a thin layer of tissue that covers the lungs and lines the inside wall of the chest space
Heart and large blood vessels
Thymus, a gland that’s part of your immune system

3. Left Knee (21-30 degrees)

10^th house (Use 10^th Cusp):

Left Nostril (0-10 degrees)
Left side Ribs (11-20 degrees)
Left Thigh (21-30 degrees)

11^th house (Use 11^th Cusp):

Left Ear (0-10 degrees)
Left Arm (11-20 degrees)
Left Testicle/Ovary (21-30 degrees)

12^th house (Use 12^th Cusp):

Left Eye (0-10 degrees)
Left Shoulder (11-20 degrees)
Anal (21-30 degrees)

Please note for Spinal cord: 1^st, 5^th, 6^th, 8^th and 9^th houses has to be seen collectively.

Part of spinal cord corresponding to the back side of your neck (Cervical spine, C1-C7): 1^st house
Right side of the spinal cord corresponding to the back side of your right side chest (Thoracic spine, T1-T12): 5^th house
Right side of the spinal cord corresponding to the back side of your right side belly or abdomen (Lumbar spine, L1-L5): 6^th house
Left side of the spinal cord corresponding to the back side of your left side belly or abdomen (Lumbar spine, L1-L5): 8^th house
Left side of the spinal cord corresponding to the back side of your left side chest (Thoracic spine, T1-T12): 9^th house

Here please note that Mars is the Karaka Planet for Spinal Cord. Sun governs over the bone framework, Saturn gives the endurance and load-bearing capacity hence governs over load bearing bones/parts like knees, heel, feet, forelegs and buttocks, but the spinal cord is unique: yes, it is a bony structure (Sun), and yes, it bears load (Saturn), but its core role of the spinal cord is dynamic protection and transmission—it enables movement, posture shifts, reflexes, and rapid signal flow. This dynamic, reactive, and protective function is purely Martian. Mars governs action, impulse, neuromuscular response, and the body’s ability to react instantly, which is exactly what the spinal cord does—carry signals for movement and reflex before even the brain processes them. Mars gives the spine its active life—its ability to move, respond, and protect under stress. That’s why Nadi assigns Mars as the primary karaka of spinal cord: not because the spine is a bone, but because it is a living, reactive axis of action, which is Mars’ domain.

Saturn represents: Structure, Hardness, Aging Degeneration, Peripheral parts of body, Lower half of body. Now notice something: Sun = Center, Saturn = Periphery. Extended bones like: Heel, Knees, Feet, Chin, Buttocks are all: Weight-bearing, Structural Mechanical stress areas, End-point skeletal parts. Saturn rules: Burden, Pressure, Chronic wear & tear. So Nadi Astrology logic says: Sun gives bones their life. Saturn makes them bear karma. That is why functional skeletal suffering is often Saturn-related. Sun governs: Bone vitality, Skeletal authority. Saturn governs: Knees (support system), Ankles (balance), Heel (impact absorption) Chin (lower jaw extension), Buttocks (sitting pressure). All are: Load-bearing, Mechanical, End structures. Saturn rules: Gravity, Compression, Hardness and Dryness. These are qualities directly linked with joint degeneration and extended bones. Philosophical Angle: Sun = Atma (soul center), Saturn = Karma (burden carrier). Bones represent: Structure of life, Responsibility, Support system. The outer framework (Saturn) carries what the inner vitality (Sun) creates. So if: Sun weak → weak bones constitutionally. Saturn afflicted → pain in knees, heels, joints.

Here also understand that, Mercury govern the nervous system, but specifically the brain-based intelligence, signaling accuracy, coordination, and interpretation—basically the software and communication aspect of nerves. It handles how signals are processed, understood, and coordinated (like fine motor skills, speech, thinking, etc.). But the spinal cord is not primarily about intelligence or interpretation—it is about rapid action and reflex. It triggers instant responses (like pulling your hand away from heat) even before the brain processes it. This kind of raw, instinctive, survival-driven response is purely Martian in nature. Mars governs reflexes, reaction speed, physical impulse, and defensive action, which is exactly what the spinal cord does at its core. So in short: Mercury = signal processing, coordination, intelligence (brain & nerves as communication system), Mars = reflex action, immediate response, physical execution (spinal cord as action axis). That’s why Nadi astrology gives the spinal cord to Mars—not Mercury.

Planets and body parts:

Sun:

Right eye
Ring finger
Bones

For application: Pitta-type disturbance, illumination, vitality, heat, prana, acute, inflammatory, feverish, sudden collapse

Moon:

Mind
Left eye
Stomach
Spleen
Intestine
Colon
Rectum
Liver (glucose storage & release)
Pancreas (insulin secretion)
Kidneys (filtration of blood sugar)
Appendix
Gallbladder
Urinary Bladder (sugar excretion)
Esophagus, the tube between your mouth and stomach
Trachea, your windpipe
Bronchi, the tubes that carry air from your windpipe to your lungs
Lungs
Breast
Pleura, a thin layer of tissue that covers the lungs and lines the inside wall of the chest space
Heart and large blood vessels
Thymus, a gland that’s part of your immune system
Prostate and
Blood specifically, White blood cells, Plasma and Platelets
Veins, Arteries and Capillaries

For application: Kapha-type disturbance, emotions, thoughts, sensitivity, reflected light, perception, fluids, nourishment, mucous lining, moisture, respiratory matrix.

Mars:

Tooth/teeth
Muscle
Red blood cells
Bone Marrow
Cardiac region
Eyebrow
Testicles
Testosterone
Spinal cord
Bridge of the nose and heart

For application: Pitta-type disturbance, hot (heat), sharp, bleeding, infection, inflammation, surgery, cutting, acute pain, aggression, structural strength, muscular force, action (both attack and defense), courage, excess acid, ulcers, reflexes, reaction speed, physical impulse.

Mercury:

Little finger
Throat
Neck
Skin
Tongue
Naval
Gullet
Lungs
Arms/hands
Forehead
Shoulders

For application: Vata-type disturbance, nervous system signaling, coordination, sensory integration, intelligence, interpretation, signaling accuracy.

Jupiter:

Thighs
Index finger
Brain
Nose
Nostril
Flesh
Fat and
Feet

For application: Kapha-type disturbance, expansion, congestion, deposition, thickening, nourishment, nasal passages, growth (enlargement), lubrication, confidence, morality.

Venus:

Uterus (Womb)
Cheeks
Face
Semen
Seminal Vesicle and
Ovaries

For application: Kapha-type disturbance, Sukra dhatu is the most refined tissue/fluid in the dhatu chain (Rasa → Rakta → Mamsa → Meda → Asthi → Majja → Sukra), lubrication, pleasure receptors, fine sensory response, soft cellular tissue, reproductive hormones (estrogen, progesterone, testosterone etc).

Saturn:

Feet
Heel
Chin
Digestion system
Middle finger
Knees
Digestion bladder
Foreleg and
Buttocks

For application: Vata-type disturbance, dryness, cold, degeneration, aging, burden, pressure, chronic wear & tear, restriction, weight-bearing, structural mechanical stress areas, end-point skeletal parts, falling, slipping, fracture, hardness, slow, grinding, mechanical, persistent, calcification, weakening, poor circulation, slow bowel movement.

Rahu:

Intestine
Lips
Mouth
Ear
Rectum
Vagina
Head

For application: Vata-type disturbance, distortion in organs/parts, abnormal growth, amplification, toxins, smoke/poison/gas, irregular growth, obsession, erratic nerve impulses (neurological irregularity), confusion of direction, illusion of movement, distorted perception (sensory distortion), Suddenness, fear, paranoia, phobias, unnatural, explosive, foreign elements, chaos.

Ketu:

Anus
Nail
Hair
Penis
Urethra
Moustache
Nerves

For application: Pitta-type disturbance, neurological irregularities, numbness, tingling, sudden collapse of signaling, ulceration, piercing pain, elimination, channels of discharge, irregularity, celibacy, atypical sexual function, separation from procreation, severance / detachment from lineage, hidden/internal diseases, degeneration, sharp, fiery.