This study updates neutrino mass constraints using background measurements from cosmic chronometers, galaxy clusters, and gamma-ray bursts (GRBs), in addition to Baryon Acoustic Oscillations (BAO) and supernovae Ia (SN Ia). The combination of these data sets provides tighter bounds on the total neutrino mass, with the most stringent limit being $ \sum m_{\nu} < 0.043 $ eV at 2σ, combining Planck CMB data with DESI BAO, SN Ia, GRBs, cosmic chronometers, and galaxy clusters. This result suggests a tension between cosmological observations and neutrino oscillation experiments, indicating potential non-standard neutrino or cosmological scenarios. The tighter neutrino mass bound is due to the higher preferred value of the Hubble constant $ H_0 $ from the background probes, along with improved errors on $ H_0 $ and matter-energy density $ \Omega_m $. All $ H_0 $ values are consistent at the 1-2σ level. Neutrino mass constraints are crucial for understanding the neutrino mass hierarchy, which is important for future neutrinoless double beta decay experiments. The study also highlights the role of CMB lensing in constraining neutrino mass, with the Planck collaboration setting a bound of $ \sum m_{\nu} < 0.24 $ eV at 95% CL. The study uses the publicly available Boltzmann solver CAMB and the Monte Carlo Markov Chain (MCMC) method to infer posterior distributions of model parameters. The results show that the combination of DESI BAO, SDSS BAO, and other background probes provides the most constraining neutrino mass bounds, with the tightest limit being $ \sum m_{\nu} < 0.043 $ eV at 2σ. The results suggest that current neutrino mass limits are challenging to circumvent within the ΛCDM framework and its extensions, requiring exploration of non-standard neutrino physics. The study also discusses the implications of these results for future neutrinoless double beta decay experiments and the potential for exotic cosmological scenarios.This study updates neutrino mass constraints using background measurements from cosmic chronometers, galaxy clusters, and gamma-ray bursts (GRBs), in addition to Baryon Acoustic Oscillations (BAO) and supernovae Ia (SN Ia). The combination of these data sets provides tighter bounds on the total neutrino mass, with the most stringent limit being $ \sum m_{\nu} < 0.043 $ eV at 2σ, combining Planck CMB data with DESI BAO, SN Ia, GRBs, cosmic chronometers, and galaxy clusters. This result suggests a tension between cosmological observations and neutrino oscillation experiments, indicating potential non-standard neutrino or cosmological scenarios. The tighter neutrino mass bound is due to the higher preferred value of the Hubble constant $ H_0 $ from the background probes, along with improved errors on $ H_0 $ and matter-energy density $ \Omega_m $. All $ H_0 $ values are consistent at the 1-2σ level. Neutrino mass constraints are crucial for understanding the neutrino mass hierarchy, which is important for future neutrinoless double beta decay experiments. The study also highlights the role of CMB lensing in constraining neutrino mass, with the Planck collaboration setting a bound of $ \sum m_{\nu} < 0.24 $ eV at 95% CL. The study uses the publicly available Boltzmann solver CAMB and the Monte Carlo Markov Chain (MCMC) method to infer posterior distributions of model parameters. The results show that the combination of DESI BAO, SDSS BAO, and other background probes provides the most constraining neutrino mass bounds, with the tightest limit being $ \sum m_{\nu} < 0.043 $ eV at 2σ. The results suggest that current neutrino mass limits are challenging to circumvent within the ΛCDM framework and its extensions, requiring exploration of non-standard neutrino physics. The study also discusses the implications of these results for future neutrinoless double beta decay experiments and the potential for exotic cosmological scenarios.