Will it create any problem for my US visa process if my documents have only my first name 'Soniya' and no second name?

No, having only your first name, "Soniya," on your documents will not create a problem for your U.S. visa application, as long as your name is consistent across all official documents like your passport, academic certificates, and visa forms.

If your passport lists only a first name and leaves the surname field blank, you should enter "FNU" (First Name Unknown) in the "Given Name" section and your full name in the "Surname" section of the DS-160 form. This follows current U.S. Department of State guidelines for single-name applicants.

Review all documents for consistency.