Register user with profile fields using services module

This json format worked for me creating user with profile2 term reference fields in which multiple selection can be done. Below profile_student_profile is term reference field with multiple selection.

 {   
   "name":"oiu",  
   "mail":"oiu@aol.com",  
   "field_mobile_number":{   
    "und":{   
      "0":{   
       "value":"987393"  
      }  
    }  
   },  
   "pass":"adsa",  
   "field_requirement":{   
    "und":{   
      "0":{   
       "value":"vzxvczx"  
      }  
    }  
   },  
   "field_gender":{   
    "und":"female"  
   },  
   "field_class":{   
    "und":[   
      "12"  
    ]  
   },  
   "field_area":{   
    "und":[   
      "31"  
    ]  
   },  
   "status":1,  
   "field_preferred_fee":{   
    "und":[   
      "434"  
    ]  
   },  
   "profile_student_profile":{   
    "field_preferred_fee":{   
      "und":[   
       "432",  
       "433"  
      ]  
    }  
   }  
 }