Canonical Vedic Shastras & Sanskrit Manuscripts
Every calculation and prediction on AstroGuru is rooted in canonical Sanskrit treatises. Explore authentic shlokas, English/Hindi translations, and mathematical derivations—100% self-hosted on AstroGuru.
Brihat Parashara Hora Shastra: Kuja (Mangal) Dosha Formulation & 16 Canonical Cancellation Rules
“लग्ने व्यये च पाताले जामित्रे चाष्टमे कुजे।”
When Mars occupies the 1st (Lagna), 12th (Vyaya), 4th (Patala), 7th (Jamitra), or 8th (Ashtama) house from Ascendant, Moon, or Venus, Kuja Dosha is generated. However, if Mars is in Aries in Lagna, Scorpio in 4th, Capricorn in 7th, Sagittarius in 8th, or Pisces in 12th, the dosha stands canonically cancelled (Dosha Bhanga).
Brihat Parashara Hora Shastra: 120-Year Vimshottari Mahadasha Cycle & Nakshatra Lords
“रवेः षट् च शशिनः खाष्टा भौमस्य सप्त वत्सरान्।”
Vimshottari Dasha assigns a fixed 120-year cycle to human longevity: Sun (6 yrs), Moon (10 yrs), Mars (7 yrs), Rahu (18 yrs), Jupiter (16 yrs), Saturn (19 yrs), Mercury (17 yrs), Ketu (7 yrs), and Venus (20 yrs). Starting balance is determined strictly by the Moon's elapsed arc in its natal Nakshatra.
Muhurta Chintamani: The Five Sacred Limbs of Time (Panchanga) & Rahu Kaal Segments
“तिथिश्च वारं च नक्षत्रं योगः करणमेव च।”
Panchanga comprises 5 cosmic measurements: Tithi (Lunar day = 12° Sun-Moon separation), Vaara (Solar weekday), Nakshatra (Lunar constellation = 13°20'), Yoga (Sun+Moon sum = 13°20'), and Karana (Half-Tithi = 6°). Each day is partitioned into 8 equal daytime segments, of which one specific segment is ruled by Rahu and strictly avoided for auspicious undertakings.
Surya Siddhanta & Aryabhatiya: Sidereal Precession of Equinoxes & True Chitrapaksha (Lahiri) Ayanamsha
“त्रिंशत्कृत्यो युगे भानां चक्रं प्राक् परिलम्बते।”
The fixed sidereal zodiac (Nirayana) differs from the tropical moving equinoctial zodiac (Sayana) by the precessional offset termed Ayanamsha. The benchmark calibration anchors Spica (Chitra Nakshatra) at exactly 180°00'00" opposite the vernal equinox, forming the official Chitrapaksha (Lahiri) Ayanamsha.
Phaladeepika & Jataka Parijata: 36-Point Ashtakoota Marriage Compatibility System & Nadi Cancellation
“वर्णो वश्यं तथा तारा योनिर्मैत्री गणस्तथा।”
Marital harmony is evaluated across 8 dimensions totaling 36 points: Varna (1 pt), Vashya (2 pts), Tara (3 pts), Yoni (4 pts), Graha Maitri (5 pts), Gana (6 pts), Bhakoot (7 pts), and Nadi (8 pts). Nadi Dosha is canonically cancelled if partners share the same Moon sign with different Nakshatras, or different Padas of the same Nakshatra, or have friendly Moon sign rulers.
Jaimini Upadesha Sutras: 7 Chara Karakas (Atmakaraka to Darakaraka) & Soul Purpose
“आत्माधिकः कलादिभिर्न भोगैः।”
The planet possessing the highest longitude in any zodiac sign (excluding Rahu/Ketu in the 7-karaka scheme) becomes the Atmakaraka (King/Soul indicator). The subsequent six planets in descending order of degrees become Amatyakaraka (Career/Counsel), Bhratrukaraka (Siblings/Courage), Matrukaraka (Mother/Nurturing), Putrakaraka (Children/Creativity), Gnatikaraka (Obstacles/Karmic debts), and Darakaraka (Spouse/Partnerships).