Divisional charts the unique gift of Hindu Sages and Rishis are not only being taught but are increasingly being used in teaching and research at the largest astrology teaching centre in the world, at the Bhartiya Vidhya Bhawan New Delhi. Drekkana - The one-third division of rashi is an important divisional chart. Miharishi Prashar has assigned 4 Vimshopak Bala points to this chart, the Natal chart gets 6 and the Navamsha get 5, in the 20 point allocated to the Shadvargas. It is also important to mention that Maharishi Prashar decreed that all predictions be given after analyzing the Shadvargas. This exhaustive treatise on Drekkana has been laid out in two parts. In Section-I the treatise covers all the available data on the Drekkana as given in the classics. The treatise in the next step deals with the Drekkana lordships, the 36 Drekkanas and their "Swaroop " (description of the imagined pictorial identity), The categorization of Drekkanas by their nature (Ayudh, Pakshi, Chatuspad ete.) Drekkanas and the body parts. The results of planets in the Drekkanas and Navamsha of another planet have been collated from the classics. The attempt has been made to collect all the details about this Divisional chart ill one place. The appllcability of this divislonal chart, to fine tune: have been explained in different chapters of Section -2. Chapters are: (a) Drekkama and its nature (b) Drekkana and the Yogas (c) Use of Rashi, Drekkana and Navamsha (d) Use of Drekkana "Swaroop" in assessing Professions (e) Drekkana and Siblings (f) Drekkana and Diseses (g) Drekkana and Past / future births (h) Use of Drekkana in Yatras (i) varanasi Drekkana and Karam Phala.