DS-160: No Surname in passport

My surname is blank in the passport and the given name has the full name POOJA JAIN, Please let me know what to fill in the surname and given name fields in DS160 form for H1B visa for US. Should I get the surname added in my passport?

Refer this article: http://redbus2us.com/surname-blank-in-passport-first-name-as-fnu-in-us-visa-issues-solution/