selection of system integrator for study, design, development, implementation operation and maintenance of application, web-portal and mobile application for excise and tax department, himachal pradesh selection of system integrator for study, design, development, implementation operation and maintenance of application, web-portal and mobile application for excise and tax department, himachal pradesh , details of system requirements, system requirement specification , vat allied taxes and excise application, web portal & mobile application development, including any upgradation proposed by bidder , deployment & go-live of complete application with all modules as mentioned in the rfp and as decided by client on successful uat by client , legacy data migration , system integrator shall provide training service for the stake holders& department users , user manuals, training manuals, audio-videos for various purposes related to the system. these entire documents / audio-videos must be got approved from the client. , operations and maintenance and up-gradation ( post implementation support )