I go by the smell and richness of "sarson" flavor, and we mostly use our own oil, so cant say anything about this, even the folks who extract the oil for us, recommended patanjali to us. As for adulteration, just because some brand isnt caught yet adulterating their stuff, doesnt mean they are clean.
We have been in the FMCG business for a while now, and if you ever walked through a manufacturing plant with me, I can guarantee that you would never buy a single packet of lays/kurkure/<insert any other item> ever again. Same for goes for restaurants and specially sweets, no matter if you buy from the most expensive/exclusive sweet house.
