For the screening of anti–inflammatory activity, the plants which were used are Coriandrum sativum Linn is commonly known as Dhania or Dhana (Umbelliferae). It yields 0.3 to1% of volatile oil, 90% of D- linalool, coriandryl acetate, L-borneol, geraniol and pinene. Its leaves were also rich in Vitamin A content.Traditionally its fruits as well as volatile oil were used as an aromatic, carminative, stimulant and flavouring agent. Datura stramonium Linn. is commonly known as Shivapriya (Solanaceae). Its chemical constituents are tropane, hyoscyamine, glycosides of quercitin and kaempeferol, coumarins and tannins. It was used as a parasympatholytic, CNS depressant, cough, antihelminthics, antiparastic, expectorant, antispasmodic. Azadirachta indica is commonly known as Neem (Meliaceae). Its chemical constituents are diterpenes-sugiol, nimbol, triterpenes-β-sitosterol, stigmasterol, nimaton, quercitin, myrecetin, kaempferol, nimbidin, salanin and azadiradione. It was used as astringent, antiseptic, demulcent, refrigerant, appetizer, insect repellant, malaria, inflammation, diabetes.