Letter from compliance management cell

Assessee get letter for non submittiong return for AY2010-11, AY2011-12 ,AY2012-13 form compliance management cell , assessee salaried employee and having taxable income more than 5 lacs ,employer deducted TDS and issued FORM16. already response to letter through COMPLIANCE link and referrence no also generated.My quesstion is what next step should follow to resolve the issue ??