Need help for 130 file for married brothers

[Purvishah]

Hi
I need to file petition for my married brother now my question is that
Do I need to separate file for his wife and kid ? or it will be covered under his application
if there is no such catagory so what documents i need to submit to file for his wife and kid.

Please advise

[sviswanatham]

It will be covered in the same application.