[3] The love affair between Chandragupta and Chhaya as well as the sub-plot regarding the story of Antigonus is Ray’s original thoughts.
Chandragupta, the Prince of Magadha, after being overthrown and exiled by his half-brother Nanda, joined Sekendar Shah’s army where Seleucus taught him the art of warfare.
Later, with the help of Chandraketu, the young king of Malay, Chanakya, the former Royal Priest and Katyayan, the former Prime Minister of Magadha, Chandragupta defeated and overthrown Nanda who was later put to death by Chankya.
As a part of the peace treaty signed between Chanakya, new Prime Minister of Magadha and Seleucus, Chandragupta married Helena.
Antigonus comes back to India and declared that he is a legal son of Seleucus, and hence Helena’s half-brother and the Chandragupta’s brother-in-law.