Salary Hike before stamping H1B

[arunvik]

Hi, I'm from Hyderabad, India. My H1B visa got approved and I'll be going for stamping in a month.

I'm getting a 20% salary hike from the salary which was mentioned during my H1B approval. My job title, location and client dose not change. Should I have to file any amendment? If yes then what is the procedure?

Thank you in advance.