can anyone send information including mathematics too regarding Discrete time fourier transform and Discrete Fourier Transform.?? along with difference b/w them.
The two might very well be two names for the same thing.
Are you sure you don't want the difference between the "finite Fourier transform" and the "discrete Fourier transform"?
Added after 2 minutes:
Sorry (got it now) - your term's correct.
I know I've seen a table of properties of four Fourier transform variants - two based on integrals, and two based on summations. (looking)