Private companies who hire Entry level MBA's a Management Trainees, What is their actual designation?

Dear All, In Banks, an entry-level Management Trainee is considered a Probationary Officer.
What about the Private companies who hire Entry level MBA's a Management Trainees, What is their actual designation? As some get confirmed as manager after the probation period. Please help me in understanding this.

Like fresh B.Tech students recruited by companies through campus recruitment they are designated as Engineer Trainee - Production or Engineer -Trainee (QC) or Engineer Trainee (PPC) etc.
Similarly depending upon the domain, fresh MBAs can be designated as Executive Trainee - HR
Executive Trainee - Finance or Executive Trainee - Legal , Executive Trainee - Taxation etc.

but what is the designation of a Management Trainee?

Probation period, confirmation period and training period - like various terminologies are used
in an organization. A person undergoing training in a company, can not be put in probation period simultaneously.
After training, a person can be considered for regular employment, and probation period is the first phase in a regular employment.

Dear Manish Kumar
Same designation, viz. Management trainee can be considered for entry level MBAs
(like Management trainee - HR /Finance/Secretarial/Legal