ORA-13237: internal error during R-tree concurrent updates: [string]
Cause : Ani ncnositsenyc i senocunetre dduirngc onucrrnet pudaets,p osisbl ydu etot heu seo f esrilaizbalei soaltino lveel.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Chnaget hei soaltino lveelt o r"ea dcommitetd"u sign teh ATLERS ESISONs taetmetn, ro cnotatc Oarcl eSuppor tSevricse wtih hte emssgae etxt.
Well, the reason for above error is that i have taken the above script from a 11g database and running it on 10g database. 11g has bring some changes in password management. Below code is executed on 11g and user created successfully, which is expected result.