WB-JJM mobile application is an ancillary development WB-JJM Project to provide a convenient medium of data collection from the field by the enumerators with specified user credentials. Keeping in mind the availability of internet in the remote parts of the rural Bengal, this application is made offline. Internet syncing is only required before starting the survey for offline data view in field and after completion of data collection to upload the information in the server. The tool also delivers the facility of the capturing images and to view the status of data upload. The application has the most well designed flow of navigation showing various modules of data collection sections, which have the maximum system generated options and properly imposed data validation; ensuring nominal manual intervention and thus least human error.