Din1 e-form digital signing category insufficient

I Am All Set And Filled All Details And attached All Documents in FORM NO DIN1. I want to digitally sign the e-form as an Applicant using my digital signature But I Can not find the Option of "Individual Applicant" in the drop down menu of CATEGORY under "To be digitally signed by". There are only Four Catagory's namely (a) Secretary (b) Chartered Accountant (c) Cost Accountant (d) Company Secretary. What to do now? Thank You in Advance.