How prices are sourced

Every price row on this site cites its sources and verification date. We classify prices and organise technical information by Indian Standards (IS) codes and established industry practice, not by how vendors describe products.

Source tiers

Tier 1

Brand official — price published by the manufacturer itself

Tier 2

Structured aggregator — dedicated price database with regular updates and cited methodology

Tier 3

Dealer / marketplace — single dealer price list or listing platform (indicative only)

Tier 4

Editorial — one-off articles and blog posts (reference only, never a primary price)

Merge & weightage rules

The displayed typical price comes from the highest-tier source available — a manufacturer's own published rate beats an aggregator, which beats a dealer quote.
The range spans every contributing source, so dealer-to-retail variance stays visible.
We label rows backed by brand-official or structured aggregator data as sourced. We label rows that exist only in the dealer market (paint, electrical, plumbing, blocks) as indicative, and we review them monthly.
A source sometimes converts units: per-kg to per-tonne, per-metre to a 3 m length, or per-kg putty to a 40 kg bag. The fetcher records each conversion with the data.

Freshness

A scheduled job re-fetches sourced prices weekly and opens a pull request with the diff. The report flags a sourced row as stale after 14 days without verification, and an indicative row after 30 days. Currently, no rows are stale.

Source registry

Source	Tier	Covers	Refresh
Indus TMT (Ashoka Buildcon group)	T1	steel-tmt	automated (weekly)
JSW Steel (Neo Steel)	T1	steel-tmt	manual
Tata Nexarc	T2	steel-tmt	automated (weekly)
InfraLens	T2	sand, aggregates, cement, steel-tmt, paint, electrical, plumbing	automated (weekly)
Construction World	T2	cement, steel-tmt, wood, flooring, electrical, paint, glass	manual
BuildMaadi	T3	steel-tmt, sand	automated (weekly)
M Sand Suppliers (dealer)	T3	sand, aggregates	manual
MyHousePlanner	T2	sand	manual
IndiaMART (Bengaluru directories)	T3	sand, blocks-bricks, cement, aggregates	manual
Build Kingdom (dealer)	T3	sand	manual
APCO Building Solutions	T4	blocks-bricks	manual
Dealer-quoted market ranges (internal curation)	T3	paint, electrical, plumbing, blocks-bricks	manual

Disclaimer. Prices are indicative market references for Bengaluru, inclusive of taxes where the source states so. Actual purchase prices vary with quantity, payment terms, delivery distance and negotiation. Verify critical purchases with suppliers. IS code references identify the governing standard for a material class. Always follow the current revision and your engineer's specification.