I applied for my H1B extension in premium processing and got approval until 2020. Now i am planning to apply for H4 extension as her H4 is getting expired on sep 2017. Also we are planning for a visit to india on may/june 2017. My question is.
If i want to apply for H4 extension do i need to apply or just i can go for stamping in chennai when we go to india.
Do we need to apply for H4 extension also or just getting a stamp is enough.