According to traditional definitions, Sanhitaa is only one of the three main branches of Jyotish. There were 18 principal Sanhitaa, all by Rishi, most of which have been lost partly or wholly. But even if all these Sanhitaa reappear again, they will make up only one of the three branches of Jyotish. Another is Hora, in which BPHS is unparalleled. Paraashar was a Vaidik Rishi, although a Rishi of that lineage existed right before Mahaabhaarat War. Third branch is Siddhaant, of which five were left at the time of Varaah Mihir, among which he lauded Soorya Siddhaant to be the best. According to verses in Soorya Siddhaant, it was revealed by Lord Soorya just before the end of Krit Yug.

Original Bhrigu Sanhitaa does not exist. Texts using Rishi Bhrigu's name do not qualify to be Sanhitaa at all, according to the definition of a Sanhitaa.

There are some other Sanhitaa also which people use to check their past and future.