In the Natal chart, there are 12 houses representing the various departments of the native and his life. Some houses are considered as benefic and some are malefic. The number of Benefic and Malefic houses are equally balanced. There are 6 houses benefic and 6 houses malefic.
The Trine houses i.e. 1st, 5th and 9th and Kendra houses i.e. 1st, 4th, 7th and 10th are considered as benefic houses. The 1st house is the only house that is both an angle and a trine, giving it prime most importance as the ascendant or lagna. Therefore benefic planets in the lagna,
The remaining houses i.e. 6th 8th 12 are  most malefic also known as dusthana 2,3, 11 are less malefic. Even the lords of the malefic houses are considered as malefic.

Trikona Houses

1st House

The 1st house also known as Ascendant is mundanely is Aries ruled by Mars. It is the house of individuals health, personality, character and general strength of the horoscope. The appearance of the person is also judged by the 1st house.

5th House

The 5th house is the house of Intelligence, power, children, discriminating power, . It also determines the degree of success. It is also known as house of pleasures. 5th house also rules love affairs, pleasure, entertainment and speculation. The 5th house rules the heart and the back of the kaal purush.

9th House

The 9th house is mundanely is Sagittarius is ruled by Jupiter. It signifies religion, philosophy, long journeys, relation with foreigners. It also rules over abstract thought, dreams and vision. It determines the religious beliefs of the native and also the travel and success in far off countries. The 9th house represents the hips and thighs of the kaal purush.

Kendra House

4th House

The Fourth House which is mundanely Cancer is ruled over by Moon. It represents peace, happiness, home, self-prosperity. It also predicts about mother, landed property, and conveyance. It rules the stomach and breast. It also determines the relations of the native with mother, environment, and state of property holdings.

7th House

The seventh house mundanely is Libra which is ruled by Venus. It is the house of marriage. This house represents life partner, desire. This house predicts hobbies, courage, expectations of a person.This house predicts the is not only the house of marriage but it can also predict the expectations of a person from their relationships. The seventh house can predict the inferiority and superiority complex in a person. This house also predicts the traits of personality a person wants to exhibit. Seventh house rules the veins, the kidneys, in case of a woman  the ovaries.

10th House

10th house which mundanely is capricorn is ruled over by Saturn. It represents occupation, honours, success, means of livelihood, Capabilities of an individual can be measured on the basis of his achievements and progress. It rules the skeleton and knees in particular. It determines the degree of success in business and the honour of native.