For the synthesis of silver nanoparticles, 2 ml of leaf extract was added to 250 ml of 1mM AgNO3 solution. The solution turned colourless to brown within 30 minutes. Ag nanoparticles exhibit light yellowish colour in aqueous solution due to excitation of surface plasmon resonance. On mixing the extract with aqueous solution of the Ag ion complex, a change in the colour from colourless to brown was observed. It was due to the reduction of Ag+ which indicates the formation of Ag nanoparticles shown in Figure 2. A visible colour change from transparent to yellow within 15 min indicates the formation of silver nanoparticles which was confirmed by UV-visible analysis. Further, the colour change to dark orange-brown is due to increased concentration as well as growth of silver nanoparticles. After 30 minutes, there was no significant colour change, which is evidence for the completion of reduction reaction.