can i get such settings with which i can connect my dongle with wifi router so that i can connect my tablets and mobile to use the internet of mobile...or is there ny cable available in market which connects the dongle directly to my mobile for using internet>?
More aboutusing dongle internet wifi devices
No, you cannot attach a USB dongle to a router.
If you're asking whether you can connect your 3G USB dongle to a wireless router so it can be shared, yes, but just need a wireless router that supports it. Just search for 3G wireless routers.