About the Rig Veda API
This API contains metadata from Rig Veda Samhita. Data from the other three samhitas (Yajurveda, Samaveda, and Atharvaveda) are not included, because most of the verses in these three samhitas are a repetition of the verses in Rig Veda Samhita.
In Rig Veda, books (or mandals) contain chapters, and chapters (or suktas) contain verses (or richas). A book has several chapters. A sukta has several verses. Within a sukta, each verse can be in different meter and addressed to more than one god. Within a sukta, the verses can be composed by more than one poet. See the following entity-relationship diagram.
erDiagram
Mandal ||--|{ Sukta : contains
Sukta ||--|{ verse : contains
verse ||--|| poet : is_sung_by
verse ||--|| meter : is_in
verse ||--|{ god : is_sung_for
Rig Veda API fetches the metadata of verses and, therefore, contains a separate entry for each of these possibilities wherever they occur.