Nanochemistry is relatively a new area of science arisen in the last decade of past century after discovery of fullerenes and nanotubes. Metal nanoparticles can be prepared by physical, chemical and biological routes; the first one is a physical approach that utilizes several methods such as evaporation/condensation and laser ablation. Various metals like copper, titanium, gold, silver and iron were used for the synthesis of nanoparticles. Among the noble metals, silver nanoparticles have become the focus of intensive research due to its wide range of applications for many sectors of life and Industry. In this work, we describe a cost effective and environment friendly technique for green synthesis of silver nanoparticles from 1mM AgNO₃ solution through the extract of Aristolochia bracteolata leaf as it is acts as a reducing as well as capping agent. Nanoparticles were characterized using UV–Vis absorption spectroscopy, FTIR. SEM analysis showed the size ranges from 8-15nm as well spherical and crystalline nature of the nanoparticles. The synthesized silver nanoparticles exhibited potential antimicrobial activity.