I am using cuFFT library to find FFT of a 1D array of complex numbers. I am getting only non redundant transforms. But I want the entire transform sequence(including the redundant and non-redundant). Please help me.

I assume you are referring to hermitian symmetry. There are a few topics on this forum discussing it. Here is one such example:

In other words, you can easily reconstruct the hermitian symmetric values.

Another approach is simply to switch from using R2C/C2R transforms to using C2C transforms throughout.