Two-dimensional MXene is demonstrating promising efficiency for the generation of oxygen (O₂) and hydrogen (H₂). For cost-effective water-splitting electrolysis that performs well in both Oxygen evolution reaction (OER) and Hydrogen evolution reaction (HER), the electrolyzer can effectively serve as both electrodes. In this paper, we enhanced the MXene structural properties to use it as bifunctional by following a hydrothermal route in which nitrogen is doped by using Urea. The prepared samples were characterized by utilizing XRD, Raman, SEM, EDX and UV–vis spectroscopy. An increase in d-spacing from 8.9 Å to 10.0 Å was observed after doping in pristine and EDX has confirmed the presence of nitrogen in MXene. Charge carrier mobility is enhanced by doping of nitrogen in MXene as the bandgap is reduced from 1.45 eV to 1.17 eV. The Linear Sweep Voltammetry for overall water splitting was conducted in 1 M KOH and the Nitrogen-doped Nb₂CT_x MXene displayed an overpotential of 370 mV (vs. RHE) at the current density of 10 mAcm⁻² with a Tafel slope of 126 mV/dec where pristine MXene Nb₂CT_x has shown an overpotential of 439 mV with a Tafel slope of 184 mV/dec for the OER. The composite also exhibited an overpotential (vs. RHE) of 263 mV with a Tafel slope of 103 mV/dec at the current density of 10 mAcm⁻² for the HER. The durability of the electrocatalyst was tested via chronoamperometry for 14 h, the undoped MXene retained 81% of current stability, whereas nitrogen-doped retained 95%. The EIS revealed the reduced charge transfer resistance for the composite material that collectively points towards advancements in the efficiency and kinetics of water-splitting reactions.