How does gender of inanimate and irrational nouns manifest in Dakhni? Does it deviate from Urdu?

The linguistic area of the South (Indian) doesn't have grammatical gender. This does have an impact on Dakhni but the question here is where do we draw the line? How is grammatical correctness determined in this regard?

Is it okay if all nouns that are not naturally gendered used as though they are masculine or is there any other pattern?

For instance, for what objects do you use the feminine marking if your dialect does so?

Is any of the following incorrect in Dakhni?

Naya gaadi

Acha kitaab

Billi aaya

Please also mention which dialect of Dakhni you speak for.