Rare earth elements and (87)Sr/(86)Sr isotopic characterization of Indian Basmati rice as potential tool for its geographical authenticity.

•87Sr/86Sr ratios and REEs patterns of Indian Basmati rice samples were evaluated for geographical tracer.•Uttar Pradesh originated rice found comparatively more radiogenic for 87Sr/86Sr.•Indian Basmati rice showed significant different 87Sr/86Sr ratios than other regions.•Strong correlation observed between 87Sr/86Sr of rice, silicates, carbonates and irrigation water.•Water seems to be the possible source of Sr in rice plant.