solution of cabazitaxel solvate form with solvent methanol or 2 methoxyethanol ii maintaining the reaction mass under stirring to dissolve completely at temperature ranging from 10 35 u00b0 c iii heating the solution up to the temperature ranging from 40 60 u00b0 c iv optionally holding the solution under stirring for at least 20 minutes but not more than 60 minutes v removing the solvent by distillation and isolating the amorphous cabazitaxel a solution of crystalline cabazitaxel solvate form in solvent methanol or 2 methoxyethanol is provided at temperature ranging between 20 30 u00b0 c the reaction mixture obtained is maintained under stirring at a temperature ranging from 10 35 u00b0 c in one of the particular embodiment stirring of the reaction mass was done at temperature of 25 30 u00b0 c stirring of the reaction mass is done for the time duration ranging between 10 to 60 minutes however depending upon the progress of the reaction it may extend in order to achieve the complete dissolution the temperature of the reaction solution obtained above is raised to 40 60 u00b0 c in a particular embodiment the temperature of reaction solution obtained was raised to 50 55 u00b0 c the solution is optionally maintained for time duration of 20 60 minutes at the raised temperature of 40 60 u00b0 c the time duration of stirring depends upon.