Decline Maurya Empire

the fall of mauryas left khyber pass unguarded, , wave of foreign invasion followed. greco-bactrian king, demetrius, capitalized on break-up, , conquered southern afghanistan , parts of northwestern india around 180 bce, forming indo-greek kingdom. indo-greeks maintain holdings on trans-indus region, , make forays central india, century. under them, buddhism flourished, , 1 of kings, menander, became famous figure of buddhism; establish new capital of sagala, modern city of sialkot. however, extent of domains , lengths of rule subject debate. numismatic evidence indicates retained holdings in subcontinent right birth of christ. although extent of successes against indigenous powers such shungas, satavahanas, , kalingas unclear, clear scythian tribes, renamed indo-scythians, brought demise of indo-greeks around 70 bce , retained lands in trans-indus, region of mathura, , gujarat.