A variant’s prices list holds one row per source and state with ex_showroom_inr, optional high_inr (the top of a band), source_kind (maker, dealer, reported, estimate), state_code and observed_at. Listing rows summarise the best available figure as price_from_inr, price_to_inr, price_kind and price_as_of.
Rules we ask you to keep: a reported or estimate figure is shown with a star or the word, never as the maker’s price; a band is shown as a band; the date travels with the figure.
A variant’s sheet also carries on_road: the on-road figure by state, computed from the state’s road tax and registration rules on the national ex-showroom price, with the rule’s date. A dealer’s own state quote, where one exists, wins over the computed figure. launched_at on a variant is the maker’s launch date, which drives the new-launch tracker; lifecycle tells on_sale from discontinued, and a discontinued variant keeps its last listed ex-showroom figure.
