The study was carried out to evaluate the hard seededness in the three popular varieties of greengram viz., KKM 3, WGG 42 and TRCRM 147 and laboratory study was conducted to break hard seededness with different methods viz., hot water, acid and mechanical scarification, treatment with liquid nitrogen and freezing treatments and experiment was laid out with FCRD with three replications. Results revealed that, among the three varieties, WGG 42 having significantly lower number of hard seeds (16.15 %) compared to KKM 3 (18.46 %) and TRCRM 147 (19.92 %). Among the treatments, the seeds treated with Cone. H_2SO_4 for 2 min break the hard seededness and performs better results in seed quality parameters like germination (96.0 %), root length (11.71 cm), shoot length (26.35 cm), mean seedling length (38.06 cm), mean seedling dry weight (21.58 mg), seedling vigor index I (3652) and seedling vigor index II (207) compared to untreated control in seed quality parameters (32.44%, 9.94 cm, 16.31 cm, 26.25 cm, 19.58 mg, 841 and 64, respectively). WGG 42 reported less hard seed percentage and improve in 267 per cent of germination and Cone. H_2SO_4 is the better method to break the hard seeds in green gram.
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