Hello parimalam.viswanath,
Thanks for the reply, i added openpdf-1.3.30.jaspersoft.3.jar to the WEB-INF/lib folder and removed the iText-2.1.7.jar, still getting the same error.
Do i need to do anything after adding the JAR.
Upgrading Jasper Reports Engine from 6.3.1 to 6.20.3, getting this error java.lang.NoSuchMethodError: com.lowagie.text.Document.setGlyphSubstitutionEnabled