Recently, salinity in coastal water and soil has emerged as a major constraint to produce grain legumes; therefore, present study aims to evaluate the salinity stress effects caused by various concentrations (50mM, 100mM, and 250mM) of NaCl and sea water (5%, 10%, 15%, and 25%) on seed germination and early seedlings growth in green gram (Vigna radiata L.). Results reveal that after 7-days of treatments, in comparison to control response (100±1. 98%), NaCl solution with high concentration (250mM) was turned out to be strongly inhibitory and treated seeds (60± 0. 49%) were seen partially germinated and failed to develop into complete seedlings. Furthermore, in contrast, sea water salinity treatments were turned out to be strongly inhibitory and even with very low concentration (5%) of sea water treatments, treated seeds (21±0. 5%) were germinated partially and grow into shoots only. Significantly, after 10-days of NaCl (100mM) treatments, seedlings growths were found to be negatively affected and root-shoot ratio (1. 75±0. 2/5. 31±0. 31cm) was recorded as compared to control seedling (1. 98±0. 02/7. 9±0. 71cm). However, in case of sea water (10%) treatments, shoots without roots (0. 0/2. 05±0. 46cm) were apparent. Furthermore, NaCl-stress induced seedlings on transfer to soil exhibit inhibited growth under continuous irrigation with respective NaCl-solutions. Furthermore, biochemical study indicates that endogenous proline contents gradually increase with the increase in NaCl-concentrations in treatment solutions and therefore, was found to be the maximum (203. 2x10-3g-1) in the tissues that were growing with high concentration of NaCl (250mM) while it was found to be the minimum (98. 6 x10-3g-1) in control tissues.