B1/B2 visa dropbox option not available

Hi,

I am trying to get visa renewal for my parents , their visa is going to expire next month. I paid the fee. But I dont get the dropbox option. It is directly showing Chennai visa appointment option.Please let me now.

Thank you
Manju

You should contact the VAC for such questions.

http://cdn.ustraveldocs.com/in/in-main-contactus.asp