Is B1/B2 visa still valid on old passport after changing surname in my new Passport?

[mgc]

Hi ,

I am applying for B1/B2 Visa and surname is blank in my Indian passport .
consider my name is AAA and surname is BBB but in my passport Given name: AAA BBB and surname is blank . So , I am forced to fill my Full name AAA BBB in Surname and FNU as my first name in DS-160....