Current agility tests assess one or multiple components of agility, including unidirectional, bidirectional, and multidirectional movements, which may or may not include retropulsion and rapid acceleration and deceleration transitions along with performing basketball-specific activities such as jumping, turning around 180o and 360o, along with picking a ball and throwing it when changing direction. Hence, there is a requirement for a test which is specific to a Basketball game and also possesses the intricate movements associated with the game in a single test. Objectives: To develop a new sport-specific agility test for assessing agility in Basketball players and determine its reliability by establishing the interrater and interrater reliability. Materials and methods: In this explorative study 54 male Basketball players were taken with the age group 20±3 years. Subjects having acute injuries of lower limb injuries, disabled sportsmen, peripheral nerve injuries of upper & lower extremities, history of recurrent ankle sprains/ other injuries of lower limbs were excluded. The subjects had to perform the Basketball Multicomponent Agility Test (BMAT) which is a special test that has been designed specifically for Basketball players after an intricate and thorough analysis of the game through various videos of time-motion analysis. The final test hence includes all the components occurring most commonly in the game. Results: The Intraclass correlation coefficient (ICC) across the trials for the Interrater reliability was .997 and p= < 0.01 with 95% CI. For the Intrarater reliability the ICC across the trials was .946 at 95% CI, with p= <0.01. Conclusion: The BMAT is a reliable assessment tool for sport specific agility assessment in Basketball players. It can be routinely used by sports scientists, strength and conditioning practitioners, for monitoring the training programs for Basketball players.