The Pauliá¹£a SiddhÃÂnta (literally, "The scientific-treatise of Pauliá¹£a Muni") refers to multiple Indian astronomical treatises, at least one of which is based on a Western source. "SiddhÃÂnta" literally means "doctrine" or "tradition".
It is often mistakenly thought to be a single work and attributed to Paul of Alexandria (c. 378 CE). However, this notion has been rejected by other scholars in the field, notably by David Pingree who stated that "...the identification of Paulus Alexandrinus with the author of the Pauliá¹£a SiddhÃÂnta is totally false". Similarly, K. V. Sarma writes that it is from a Greek source, known only as Pauliá¹£a.
Alberuni wrote that the Siddhanta is based on the teaching of a Greek named Paulus.
The earlier Pauliá¹£a-siddhÃÂnta dates from the third or fourth century, and the later Pauliá¹£a-siddhÃÂnta from the eighth century.
Similar to the YavanajÃÂtaka ("The Sayings of the Greeks"), the Pauliá¹£a SiddhÃÂnta is an example of Hellenistic astronomy (especially the Alexandrian school) in India during the first centuries CE.
The Pauliá¹£a SiddhÃÂnta was particularly influential on the work of the Indian astronomer VarÃÂhamihira. It was considered one of "The Five Astronomical Canons" in India in the 5th century.