If it asks about a site, recall its location, river, excavator, and special discovery. If it concerns an artefact, distinguish the place where it was found from the material or interpretation attached to it. Archaeological interpretations may change when new evidence appears, so use the standard association accepted in school texts and competitive examinations. Evidence of wooden coffin burial (kashtha shavpetika) was found at Harappa. The cemetery R-37 at Harappa yielded numerous burial remains including evidence of wooden coffins. This shows the Harappans had elaborate burial customs. Important for UPSC Prelims.