this invention discloses a process for preparation of a balloon expandable biodegradable polymer stent with thin struts with high fatigue and radial strength . the invention discloses a process for the preparation of a biodegradable polymer stent which involves deforming an extruded biodegradable polymer tube axially at a first predefined temperature by applying an axial force for a first predefined time interval . the process further includes radially expanding the axially stretched tube at a second predefined temperature by pressurizing the tube with an inert gas in one or more stages , the pressure applied in each successive stage being higher than the pressure applied in a previous stage .