mother p ¼ 0.01), occupation (of father p ¼ 0.001), monthly income (p ¼ 0.001) and children sex (p ¼ 0.001). Nutritional status (stunting and wasting) was also associated (p ¼ 0.001) with the prevalence of acute respiratory infections. Serum zinc values varied with corresponding sociodemograpic, nutritional and health care profile, but it were insignificant, except for occupation (of father p ¼ 0.01). However, it was found that serum zinc level was low in the children with acute respiratory infections of illiterate and ricshawpuller fathers and in those who were living in tinshed or kacha bamboo made house. Conclusion: Serum zinc level was low in the ARI-children. Low sociodemographic factors, poor nutritional status and male children were prevalently associated with higher incidence of acute respiratory infections.