NCl3 get hydrolysed whereas NF3 not
The answer to your question is as follows.
In NCl3, Cl has vacant d-orbitals to accept the lone pairs of electrons donated by the O atom of H2O molecule but in NF3, F does not have any vacant d-orbital.
NCl3 + 3H2O → NH3 + 3HOCl
NF3 + H2O → No reaction
Hope, this answers your question.