Screenwriting : Importance of Other Factors in Script by NicKhil Chavan

No. It's frowned upon. Where did you hear that?

but if you are going to direct it by your own than may be it's appropriate to add.

Yeah, you're right, adding in camera angels is probably really helpful if you're directing it on your own. Why are you asking the question?

I just want to have other writers consult on that topic!

The key word you used is "mandatory". Unless you are directing your own piece, camera angles aren't necessary (it's for the production process). This format is called shooting scripts. However, you are the writer-- your penmanship, so if there's something that you must convey... Check out this link and see if it helps with what you're trying to accomplish: http://scriptwrecked.com/2009/11/20/5-key-differences-between-spec-and-s...

Listen to Ron Moskovitz.

Camera angles and similar have no place in a spec script. And Ron is absolutely right about reading produced screenplays in draft form, not shooting scripts (shooting scripts have numbers running down the left margin). Transitions are more complicated. Occasionally -- and only occasionally -- using a transition in a spec script may be warranted if, for example, there's a significant time jump in the story, but not enough of a time change to justify a card with the new date.

Probably opposite of that. Though no one kicks you out of Hollywood for using camera angles a couple of times in a screenplay, new writers love to overuse that stuff to make them look "professional" and it has the opposite effect. You want to do everything for a reason. So if you use a camera angle, it's for a very specific reason... not just because you are the writer think it should be a close up or whatever.

No! You want to submit a "clean" script.

Appreciate you all for your enthusiastic reply on my query. Thanks a ton.