>this path to bash.bashrc file but i am not able to install neither htk nor julian

are you getting any errors during the install process?

no.. iam not getting any errors..installation of cygwin is tested by perl -v...how to edit bash.bashrc file using cygwin editor to save the path...i did it using windows editor..and when i typed HVite in cygwin bash shell i got it like "command not found" 

please help me..

yeah I having the same issue. please help me out this .so that i can move further .