need to develop android and ios mobile app as well as website for tasks approval (example : for official works, technicians, workers, supervisors, managers used to travel from office to project sites for which they will approach back office executives for train / bus ticket booking. on raising request with proper justification, the system to send notification to their reporting manager for approval. On approval the back office executive will have to initiate ticket booking. note there will be pre-assigned ceiling to various catagories of personnel like technician ticket shall be below 500, engineer can have 800 and manager can have 1000 like wise. If the back office team cant book ticket in the limits, he/she will mention the reason and will route to manager for approval. on successful booking, the ticket details shall be entered in the system including the mode of payment made. The system should generate customozed reports by cost centre wise- project wise / employee wise / reporting manager wise .. etc) and for various expenses for two wheeler / car expenses in Kilometer etc..