Using specific heat and resistivity measurements, different parameters of NbTi superconductors have been analyzed. Validity of the two-fluid model, BC2 (0), Summerfield Constant, γ Slope of the graph β using Cp/T vs T2, jump height, and matching of the theory and experimental results in the framework of BCS and WHH theory have been checked. Data are presented for NbTi in magnetic fields up to 10 Tesla