Hi Prashanth,
As the .xsaccess file implies, you need at least this role "p1940932600trial.newtrialinstance.shine.SHINE::Basic" to access the app. So, please first check if the user "DEV_9CMDCJ76PNYFSEK8JWERSBYUJ" has this role. If not, please refer http://help.sap.com/hana/SAP_HANA_Interactive_Education_SHINE_en.pdf section 4 "Assigning Roles".
Best regards,
Wenjun