Beyond Lagna (Ascendant), several derived lagnas are used for specialized questions.
Hora Lagna: Used to refine wealth and financial judgment. Computed from the birth time and Sun's position. A strong Hora Lagna with benefic ruler = wealth accumulation. Weak or malefic-ruled Hora Lagna = financial struggle.
Ghatika Lagna: Used for health and vitality assessment. Derived from Ghatika (time-keeper measure). Strong Ghatika with Jupiter influence = excellent health. Weak or afflicted = chronic conditions.
Sree Lagna: Related to material prosperity and sustenance (used less commonly in modern practice).
Karakamsha Lagna: The house containing AK; already covered in previous lesson but worth revisiting here as the most important "special lagna" in Jaimini.
Computation: The calculator provides methods for deriving these lagnas from birth time, date, and location. You will compute and interpret one special lagna for a sample chart, using it to answer a client question (e.g., "Will I become wealthy?").
Limitation: Special lagnas are secondary refinements. Lagna, Karakamsha, Arudha Lagna, and karakas themselves are the primary tools. Special lagnas are used to disambiguate or add detail when the main chart is unclear.
The set. Hora Lagna is read for wealth, Ghatika Lagna for power and status, and Bhava Lagna for the general unfolding of life. Each advances from the sunrise point at its own defined rate, so all of them depend directly on an accurate birth time and an accurate sunrise for the birthplace.
Rates of motion. Bhava Lagna advances one sign per five ghatis, Hora Lagna one sign per hour, and Ghatika Lagna one sign per ghati. Because Ghatika Lagna moves fastest, it is the most sensitive to birth-time error and the first to become unreliable in an unrectified chart.
How to use them. Special lagnas refine rather than replace. For a wealth question, read the 2nd and 11th from Hora Lagna alongside the same houses from the ascendant. Agreement strengthens the reading; disagreement suggests the matter is mixed.
A caution on proliferation. The literature contains many special lagnas beyond these. Adding more reference points increases the chance of finding one that supports any desired conclusion. Restrict yourself to the few you have tested and understand.