This is a enormous thing in Lal Kitab. Each planet has his own friends who behave in a friendly way. Some times one of such planets may occupy the house of lordship or the Pakka Ghar of his friendly planet and that planet does not occupy any such house of the former. In such a case the two planets, although friends may not remain the true friends. The behavior of the former will be suspected. He may at times spoil the results of his friendly planets. The planet shall be known as matching planets. Sun and Mars are friends. If Mars occupies the Lagna and Sun does not occupy such house of mars, Mars behavior under such circumstances may or may not be friendly to Sun. Mars would be called a matching planet to Sun. Both can harm each other.
Classifications Of Planets
On the basis of gender
Male Planets: Sun, Mars, Jupiter
Female Planets: Moon, Venus
Neutral Planets: Mercury, Saturn, Rahu, Ketu
On the basis of caste
Brahmin Planets: Jupiter, Venus
Khatriya Planets: Sun, Mars
Vaishya Planets: Moon, Mercury
Shudra Planets: Saturn, Rahu, Ketu
On the basis of virtue
Satvika Planets: Sun, Moon, Jupiter
Rajsika Planets: Mercury, Venus
Tamsika Planets: Mars, Saturn, Rahu, Ketu
The Satvika planets motivate the natal into being honest, kind hearted, soft spoken and ardent devotee. The Rajsika planets inspire the man to become an artist and famous. He is involved in the world of domestic family life. The Tamsika planet makes the person hot tempered, deceitful, foolish, lazy, etc.
Moon, Mercury, Ketu and Jupiter are serially most auspicious planets.
Wicked Planets (Krur)
Sun, Mars, Saturn and Rahu are serially more wicked.
Mercury is in itself an auspicious planet, but it becomes an evil with wicked planets. It becomes all the more wicked if placed with auspicious planets.
Moon is also primarily an auspicious planet but from the sixth day of Krishna Pakash to Amavasya the strength of Moon is less powerful.
From Pratipada of Shukla Paksha to the tenth day it's power is of medium strength.
From eleventh day of Shukla Paksha to fifth day of Krishna Paksha it is in its full form, i.e. with maximum power.
Difference between the effect of Jupiter and Venus
Jupiter is a divine teacher (guru) while Venus is a devil teacher (guru). Venus helps people in acquiring materialistic values while Jupiter helps the person in obtaining spiritual values. Venus makes the person selfish while Jupiter inspires him to think of the well being of others.
Difference between the cruelty of Saturn and Mars
Although Saturn is cruel but its ultimate result is good. Just as gold emerges out sparkling after being burnt in the furnace of fire, Saturn purifies the man by means of punishments. It has an effect of catharsis, the man emerges as a free and pious man after getting liberated of the evil deed. Mars, on the other hand, fills the man with excitement and cheerfulness; the man is inspired by egoistic feelings which drive him to evil and violent deeds.
On the basis of Feet
Two legged (Dwipaya): Jupiter, Venus
Four legged (Chatushpod): Mars, Saturn
Winged (Pakshi Roop): Sun, Mercury
Insects (Keet): Moon
On the basis of aspect
Straight aspect (urdhua): Sun, Mars
Equal aspect (sam): Moon, Jupiter
Angular aspect (tirchhi): Venus, Mercury
Half aspect (adhyo): Saturn, Rahu
Time of the planet
Morning: Jupiter, mercury
Noon: Sun, Mars
Evening: Rahu, Saturn
Lords of Directions
South east: Venus
South west: Rahu
North west: Moon
North east: Jupiter
Lords of the Loks
Pitralok: Sun, Mars
Diseases Caused Due to the Combination of Planets
Jupiter + Rahu or Jupiter + Ketu: Asthma, Respiratory ailment, Tuberculosis
Rahu + Ketu: Piles
Moon + Rahu: Insanity, Pneumonia
Sun+ Venus: Asthma, Respiratory ailment, Tuberculosis
Mercury + Jupiter: Asthma, Respiratory ailment, Tuberculosis
Mars + Saturn: Leprosy, Blood related disease, Weight loss
Venus + Rahu: Impotency
Venus + Ketu: Disease related to Ketu, Nightfall
Jupiter + Mars (debilitated): Jaundice
Sun + Saturn: Jaundice