Is there anything new in display, touch,glance, etc? Can you post screenshots? Thanks!

Also, is there any option for USB in settings? Are were able to tether using USB? And does project my screen work wirelessly too?
Here are the answers to some of your questions,
S Vaibhav:
Display settings
There are a range of different settings in this now, such as battery saver brightness, color profile and brightness profile. I have not really tested these.
Touch settings
Nothing much here. Remember that the Lumia 630 does not carry what the Lumia 520 had, which was the super sensitive screen, so there's no options for that here. However, for the navigation on screen buttons, you can turn the vibrate on or off!
extras+info
The Lumia 630 comes preloaded with Lumia Cyan. For the techies, here's the details.
USB settings
You are now given the option to use data via USB when you plug it in or not. In the screenshot, I chose not to use my data when the USB was plugged in, but then I could tap "Use USB Data" to show my phones contents on my PC. Regarding USB internet tethering, this is non existent.
What about my phone?
Yeah, for all you developers and techies, here's the nitty gritty stuff, version numbers, and screen resolutions.
Wireless projection
Yes, this is possible on the Lumia 630, even without the USB cable!