DS160 - Indian Passport - No surname and given name more than 33 char

[vjak19830402]

I am trying to fill DS 160 for my dad for visitor US visa. I have these 2 issues:

1. Given Name is 34 char but DS 160 can only accommodate 33 char.
2. No surname in indian passport. As per instruction , I need to put given name in surname in this case. Is that correct? If so, point 1 is where I get struck that given name does’nt fit the box.

What are my options here? Do I need to get my dad’s passport re issued with surname( it seems some newspaper advertisement needs to be given in order to do so). Please suggest.