Meshadi , Thuladi, Karkyadi & Makaradi ( The First Points of Aries, Cancer, Libra & Capricorn ). Oja yatra gunairna koti apara Meshadi Jookadi gau / Gola uttara dakshinau nigadhitau Karkyadi Nakradi gau

From Aries to Libra is the Northern Celestial Hemisphere ( NCH ) and from Libra to Aries is the Southern Celestial Hemisphere ( SCH ). If the planet’s Kendra is in NCH, the values are to be subtracted and if in the SCH, it is to be added.   ( Meshadi Rinam, Thuladi Dhanam )