How to use git-send-email for deep threading

[Sunil Shahu]

Hello,
I am working on eudyptula challenge and I have to send solution file and later patches on that file using git-send-email.
I have to send email in such a way that it looks something like this in receiver's email inbox.
Two Solution Files (Makefile and .c driver file)
    └─> [PATCH 01/02] Patch 1 on earlier solution file
        └─> [PATCH 02/02] Patch 2 on earlier solution file

I tired using different options in git send-email, but what I get is incorrect linking of mails.
Two Solution Files (Makefile and .c driver file)
[PATCH 01/02] Patch 1 on earlier solution file
     └─> [PATCH 02/02] Patch 2 on earlier solution file
I am not able to send two files using git send-email for the first email. I have to use --force to send any source file. Even in this, only first file is attached in mail.
I also tried send first file using web browser mail client and then sending patches using git send-email, but it also do not work as expected.
I have read git-send-email documentation but not able to comprehend how I can achieve my requirement from it. Can someone please give pointers on how I can send email correctly as per my requirement using git-send-email?

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20150119/383afbf8/attachment.html