Phytochemical analysis of the callus cultures showed higher production of phenolics (TPC:3.0 mg), flavonoids (TFC:1.8 mg), phenylalanine ammonialyase activity (PAL: 5.8 U/mg) and antioxidant activity (90%), respectively, in the callus cultures established on MS media in the presence of 90 ug/l AgNPs.