Dear Deepkia
I'm considering that you will be executing Interview for Mid-level Employee. Here are few inputs-
A. Focus more on the Assignments the candidate had executed.
B. Area of Interest of Candidate in the domain, where you can generate questions.
C. Ask some lateral thinking questions.
*Ebook on Lateral Thinking is with me, will be delighted to share with you.
D. Ask critical questions, mentioning his/her contribution and achievements in the tasks.
E. Ask him to elaborate more on the innovation or achievements, cost-cutting initiatives taken by him.