You can follow the step-by-step process given below to fill the DS-160 form:

Step 1: Go to the Consular Electronic Application Center website and Click "Start an application". 

Step 2: Get Your Application ID

Step 3: Gather Required Information and Documents: 

Step 4: Enter Personal Information

Step 5: Provide Contact Details

Step 6: Input Passport Information

Step 7: Add Travel Information

Step 8: Enter Family and Work/Education Details

Step 9: Answer Security and Background Questions 

Step 10: Upload a Digital Photograph

Step 11: Review your entire application. Then, submit the form. 

Step 12: Print the confirmation page, which contains a barcode. This page is required for your visa interview.