operation and maintenance of d-net , admin and finance , up gradation / modifications of admin , finance and dnet ( internet modules ) , fixing of software / database related bugs / errors , srs and design documents for the new modules , development of new modules using mvc architecture , common class libraries , incorporation of logs and improving security features , linux shell scripts for automation of security features , logs and auditing , writing sqi / plsql queries for creation of view and wed pages , design and development of user interfaces , design and development of workflows check sums watermark etc , user authentication and authorization modules , testing and implementation activities of new modules , verification and validation activities for existing as well new modules