The Brihat Parashara Hora Shastra is attributed to the sage Parashara, who is believed to have lived around the 5th century BCE.

The Brihat Parashara Hora Shastra was originally written in Sanskrit, the ancient language of India.

The Brihat Parashara Hora Shastra primarily focuses on natal astrology, which involves the study of a person's birth chart to understand their personality, life events, and destiny.

The Brihat Parashara Hora Shastra consists of three main divisions: General Principles, Planetary Influences, and Predictive Techniques. Remedial Measures are not a major division of the text.

The term 'Hora' in the title refers to the planetary hour, which is an important concept in Vedic astrology. It is believed that the planetary hour at the time of birth has a significant influence on a person's life.

The Brihat Parashara Hora Shastra primarily uses the Vimshottari Dasha system and Parashara's Ashtakavarga for predictive purposes. Jaimini Astrology is a different system of Vedic astrology developed by the sage Jaimini.

The Arudha Lagna is a derived ascendant that is used to signify the strength and vitality of the native. It is calculated based on the position of the Moon in the birth chart.

Saturn is generally considered to be the most malefic planet in Vedic astrology, including the Brihat Parashara Hora Shastra. It is associated with challenges, obstacles, and delays.

The Navamsa chart, also known as the divisional chart of the 9th house, is considered to be significant for understanding a person's spiritual inclinations, religious beliefs, and past life karma.

Rahu, Ketu, and Gulika are the three main Upagrahas or shadow planets in Vedic astrology. Yamakantaka is not a Upagraha.

The Ashtakavarga system is used to assess the strength of planets based on their placement in different houses and signs of the birth chart.

Raja Yoga, Dhana Yoga, and Vipareeta Raja Yoga are well-known Yogas in Vedic astrology. Amala Yoga is not a recognized Yoga.

The Hora Lagna is the ascendant of the divisional chart of the 10th house. It is used to analyze a person's career, profession, and social status.

Vimshottari Dasha, Jaimini Dasha, and Yogini Dasha are commonly used techniques for analyzing planetary periods in Vedic astrology. Ashtakavarga is not used for this purpose.

The Shodashavarga system is used to assess the karmic influences on a person's life based on the placement of planets in different divisions of the birth chart.