Tatkal indian passport renewal in usa

Hi,

I want to apply for INDIAN passport renewal (my passport will expire in few months) from the USA via TATKAL.

  1. Do we need to send an email to VFS requesting TATKAL? I do not see anything of this sort mentioned in vfs website. But a lot of users and other blogs say we need to mail them first before going ahead with TATKAL. Anyone who recently did this through HOUSTON VFS?
  2. How long does TATKAL take? if there are no changes at all except addition of spouse name?
  3. Now I am married do i have to say marital status as married and include spouse name? What proof should i furnish if so.

ANy help on this is greatly appreciated, time is of essence for me. Thanks a lot.