A river mentioned in the Purnawarman inscription found on Tugu (Monument), Cilincing, North Jakarta. According to this inscription, the channel was excavated at the command of the Master King, a king who preceded Purnawarman, King Tarumanegara. Candra in Sanskrit means the moon, and bhaga, means part, words found on the Tugu Inscription. Inscription found on Tugu, Jakarta, is the longest inscription among King Purnawarman's relics, king of the famous Tarumanegara Kingdom.

The word Candrabhaga refers to the name of a famous river in the land of the Hindus, Punyab. In addition to the word Candrabhaga, other rivers were also mentioned in Punjab, like Gomati. Both rivers listed in the Tugu Inscription gave rise to various interpretations from archaeologists. Purbatjaraka, estimates that candrabaga is now known as Bekasi  which is estimated to be the center of the Tarumanegara Kingdom.

In the monument inscription it is written that the Candrabhaga was excavated by King Purnawarman, a noble king and strong-armed. The purpose of the excavation was to direct the river waters to flow into the sea, after passing through the royal palace. In the 22nd year of his reign, Purnawarman commanded the excavation of the river to be conducted on the month of phalguna and caitra, coinciding with February and April according to the calculation of our current era. Length of the excavation was 6,122 tumbak. A celebration or shower for the excavation was conducted by the Brahmins, along with giving a gift of 1000 cattles.

Supposedly, the channel was created to overcome flooding that had always plagued the farming areas, which generally had the most torrential rain in West Java falling in January and February. Giving a gift of a cow is a symbol in certain religious ceremonies that shows a strong connection according to the Vedic beliefs. This is also confirmed by the messages obtained from other Purnawarman inscriptions, namely the Jambu inscription or the Pasir Kolengkak inscription.