Which is the best company and which grade i use for CBZ xtream?

My name vishal and i'm confused which oil i use for cbz xtream please help me

I have CBZ xtream Hero Honda,
In the manual book of CBZ xtream:- Use only Hero honda Genuine engine Oil, Brand: Hero Honda 4T Plus Grade: SEA 10W 30 SJ Grade (JASO MA)
So Which is the best company and which grade i use for CBZ xtream?

None

As long as the oil you use is a JASO approved oil than you should be fine.
If the Manual calls for 10W40 use it unless you ride in hotter or colder extremes of tempeture than you could change to 5W40 or a 15W40 depending.

I use Mobil 1 4T synthetic in my bikes because it is recommended and is readily available though somewhat expensive.
You can use any brand within your price range as long as it is JASO approved.