Hi Ravi,
If you are looking for a patch that speeds us the download for cygwin
environment in Windows then its present in the archives.
I had used it while I was trying to get osmocombb working on Windows.
I am not able to find it in my machine now and I have switched to
linux.
Its written by Dieter. Its somewhere in the archives before Jun 25
2011. Hope this helps.
Thanks and Regards,
RM