Address change for H1b petition I-797

[Raghavgarg]

Hello,

I have a approved H1B petition with employer name and address on it and valid till 2016.
Recently my employer has relocated to some other city.
Do I have to have my petition address changed as well?

I work at a client site which remain same.

Also, I am going to India next month for restamping.


Raghav