Nms for ay 15-16

Return filed for the AY 15-16 within the due date, after that there was a notice stating as tax payable. Same amount of tax has been paid and same is not reflecting in pending actions in Dashborad. Today i have received a notice stating that return of income not filed for AY 15-16. Notice stated as Non filers Monitoring system for AY 15-16. In compliance tab, i am not able to found any related tab. Please suggest/ Help