The significators or karakas of various houses are as under:-

The twelve houses are known an Tanu (Physique), Dhana (Wealth), Sahaja (Younger brother/ Sister), Matru (Mother), Putra (Progeny), Ari (Enemies), Kalatra (Spouse), Ayur (Longevity), Dharma (Religion), Karma (Livelihood), Labha (Gains) and Vyay (Losses) 

The significators or karakas of various houses are as under:-

1st House Sun
2nd “ Jupiter
3rd “ Mars, Mercury
4th “ Moon, Venus
5th “ Jupiter
6th “ Mars, Saturn
7th “ Venus
8th “ Saturn
9th “ Sun, Jupiter
10th “ Mercury, Sun, Jupiter and Saturn
11th “ Jupiter
12th “ Saturn

Significations of Planets
Sun - Father, influence, energy
Moon - Mother, mind
Mars - Brothers, courage
Mercury - Profession, speech, education,
Jupiter - Progeny, wealth, prosperity wisdom
Venus - Marriage, material comforts, pleasures
Saturn - Longevity, sorrows, delays
Rahu - Maternal relations
Ketu - Paternal relations

Grouping of Houses

Angles or Kendra Houses : 1st, 4th, 7th, and 10th
Trines or Trikona Houses : 1st, 5th and 9th
Succedent or Panapara Houses : 2nd, 5th, 8th, and 11th
Cadent or Apoklima Houses : 3rd, 6th, 9th and 12th
Upachaya or Favourable Houses : 3rd, 6th, 10th, and 11th
Evil or Trik Houses : 6th, 8th, and 12th
Death inflicting or Marak Houses : 2nd and 7th