Both are the exact same. These terms are used to describe the brokerage fee for flat fee discount stock. These terms are also known as 'per executed orders'.
5paisa, a discount stock broker, charges flat Rs 10 for each executed order brokerage fees.
Flat Rs 10 brokerage is charged for cases 1 and 2. No matter how many trades were made, this transaction will be charged one flat Rs 10 brokerage at the end.