Hi Boopalan,
Which application are you talking of Hybrid or native application as in both case the method is different actually I am facing the same issue with my native IOS app Rinzy Deena Mathews
If you have hand on experience on native app can you share how to add multiple records to SUP MBO structure in native IOS client I have also posted the thread for the same http://scn.sap.com/thread/3421306
Regards,
Fenil Doshi.