The present investigation was carried out during 2018–19 to evaluate the variation in seed dimension and most promising seed pre-treatments for accelerating germination of Spondias pinnata Linn. The various pre-sowing treatments were the Control (no treatment); soaking in cold water for 24 hours; soaking in cold water for 48 h; soaking in cold water for 72 h; soaking in 100 ppm thiourea for 24 h; soaking in 200 ppm thiourea for 24 h; soaking in 400 ppm thiourea for 24 h; soaking in 800ppm thiourea for 24 h; soaking in 1000 ppm thiourea for 24 h; soaking in 100 ppm KNO₃ for 12 h; soaking in 200 ppm KNO₃ for 12 h; soaking in 400 ppm KNO₃ for 12 h; soaking in 800 ppm KNO₃ for 12 h and soaking in 1000 ppm KNO₃ for 12 h. The experiment was laid out in randomised block design with 13 pre-sowing treatments and the control with three replications of 100 seeds. The highest (54.33%) germination percentage was observed from cold-water for 48 hrs followed by thiourea 1000 ppm for 24 hrs (50.00%) and potassium nitrate 200 ppm for 12 hrs (48.67%). Parameters like germination value, mean germination time, root length, shoot length and seedling vigour index were significantly different among all the pre-treatments.