How can we set the beacon enter and exit region distance Immediate, Near, Far programmatically?
Hey Raj—enter and exit will always get called as soon as the device enters/exit range of the beacon, I'm afraid there's no way to get enter/exit notifications when entering/exiting specific proximity zones (such immediate or near).
You can however use the Estimote app to adjust beacon's broadcasting power to manipulate the range of the beacon itself.