I think if you left it as English, should be fine. I think that section is for people whose home country does not use English. In India, they use English so in my opinion it should ok to leave it blank.
I should have added. If your birth certificate has anything of that info missing. As mine did not have my name as my parents had not decided what my name would be when the birth certificate was issued.
For 1. just skip it.
For 2. put the date on which you submit the application.
I have always managed my full immigration process by myself. But you are responsible for your own application , people on forums can help you but its still your own judgment. If you are still not sure you should consultant a immigration attorney.
I did not find I-130 May 2022 May Filers for parents so i created one.
I submitted Application for my mom on 1st of May 2022. Got NOA1 on the same day.
Sent to Potomac SC.
Now i just wait.