Hi Mate,
did u mention during EE submission that , u already applied in OID & the status. if is, then u no need to do anything. But u have to decide, that what u want to keep. that's ok. Because whenever, SINP will screening, then they will find that u already submitted 2 application (OID & EE). then they will send to u a mail & ask u that which one u want to withdraw. that time u will give them answer what u want. but u have to give them reply within five working days. if fail to meet the 5 days then they will consider the application which u applied earlier. that means (OID). Because there is no Warranty & Guaranty that, u will must get nomination in EE or OID. But safe side is that, sometimes, experience shows that somebody applied in OID & EE. but later on without SINP mail, they withdraw one. But finally shows that, at the remaining stream his/her application was not evaluate also. that means s/he loose both. nomination is the last step. so, if SINP mail u for confirmation ur opinion , that means one thing u will get sure that one application is going into the process for evaluation. if everything they found ok,then u will get nomination. Best of luck.