[2][3] 'bṛhat parāśara horā śāstra' (बृहत् पराशर होरा शास्त्र) can be loosely translated to examples such as 'the great book on horoscopy by Parashara' or 'Great Parashara's manual on Horoscopic astrology': Venerable Parāśara, leader among Muni-Sages [said:] Jyotiṣa, the supreme limb of the Vedas, has three divisions - Horā, Gaṇita and Saṃhita.
[12] As such, there are doubts in regards to the authenticity of various manuscripts of the Bṛhat Parāśara Horā Śāstra (BPHS) that emerged centuries later.
One concern raised is the apparent admission by Sitram Jha in his 1944 publication of the BPHS that he changed and removed elements of the manuscript.
[13] Another concern raised by Vedic Astrologers such as Shyamasundara Dasa 'that casts doubt on the veracity of the modern BPHS is the complete lack of any ancient commentary on the text.
[14] According to R. Santhanam and J. Gonda, the following are the modern translations (and manuscripts) of the Bṛhat Parāśara Horā Śāstra (BPHS):[2][11]