The application is created for the members of DSOI Delhi. DSOI is the biggest Defence Officers’ Institute of its kind in Asia. The objective of DSOI is to provide online recharge & payment facilities to the members of DSOI. It also provides a combined officers mess facility to them. This mobile app provides the following facilities to DSOI Delhi registered members : 1. Online bill payments. 2. Online Bill details. 3. Online recharge.