An humble attempt to learn hindi

I cringe each time I listen to Radio Jockey Prithvi announce in Radio One about his program "Prithvi ko hindi kyun nahim aathi" - an humble attempt to learn hindi.

Why is it an humble attempt?  Is humble pronounced umble?  If not, why would you use an instead of a?  Should it not be a humble attempt?

Before he learns Hindi, I think he should first learn English!