Abstract: An investigation was carried out to find out the optimum sieve size for size grading of seeds of olitorius jute cv. JRO 524 and JRO 8432. Pre cleaned seeds of both the cultivars were size graded using BSS 12x12, BSS 14x14 and 16x16 wire mesh sieves. The jute cv. JRO 524 seeds graded with BSS 16x16 recorded high seed recovery (59.45%) than other sieves used with required germination (96%), seedling length (11.75 cm), drymatter production (7.5 mg/10 seedlings) and vigour index (1132). The same trend was also observed in JRO 8432. Hence, seeds of olitorius jute cv. JRO 524 and JRO 8432 could be size graded using BSS 16x16 sieves for more seed recovery with required seed quality standards.