"I, (any name), am here to... " is this correct?

Solution 1:

Yes, this is correct. It’s an example of apposition, typically used to clarify the identity of something by referring to it in multiple ways:

I, Jon, like cats.

Angel, my cat, is fluffy.

Be aware, though, that saying “I, (name)” sounds quite formal. It is often used to begin an oath, for example:

I, Jon Purdy, do solemnly swear…

Ordinarily when giving a speech, an MC will introduce you to the audience, so there is no need to state your name. In that case, you can simply begin:

MC: Please welcome Kartik Choubisa.

You: Thank you. On behalf of xyz, I am here to…