Zero valent iron nanoparticle (nZVI) technology is becoming an increasingly popular choice for treatment of environmental remediation and remediation of contaminated sites as iron is inexpensive, non-toxic and environmentally compatible. Nanoparticles are attractive for remediation of various contaminants because of their unique physiochemical properties, especially its high surface area over iron filings. Still today the main problem of nZVI based remediation technology is to synthesize air stable nZVI. The present study has attempted to synthesize air stable nZVI in the presence of Ethylenediaminetetraacetic acid (EDTA), Diethylenetriamine pentacetic acid (DTPA), Nitriloacetic acid (NTA), trans-1,2-diaminocyclohexane-N,N,N’,N’-tetraacetic acid (CDTA), Hydroxyethylenediaminetetraacetic acid (HEDTA), Triethylene tetraamine (TRTA) and N-cetyl- N,N,N-trimethyl ammonium bromide (CTAB) chelating agents. Nanoparticles have been characterized by using X-ray diffraction, Scanning Electron Microscopy/Energy Dispersive X-ray Spectroscopy, Fourier Transformed IR and UV-Vis spectrometry. The chelating effect was the best for EDTA, NTA and HEDTA, but the least for CDTA and CTAB. Hydroxyl groups, lone pair electrons on nitrogen atom and steric effects of cyclohexane ring and bulky surroundings played the main role to provide air stability towards synthesized nZVI. Fourier transformed IR study showed that no peak from any chelating agent was observed in the spectrum which was supported by powder XRD study.