Finally its resolved the 20% error that causing stuck iOS 8.3 jailbreak. Here’s how to fix the TaiG 20% timeout for the iOS 8.3 jailbreak while jailbreaking if you have waited and got an error -1101, you need to downgrade your version of iTunes
To do so simply remove the current version of iTunes on your PC and you must install iTunes 12.0.1.
After un-installing Reboot you PC and download iTune 12.0.1 from here and install it!
Once you have installed the above mentioned version of iTunes open up and don’t update, and follow the instruction how to jailbreak iOS 8.3 firmware.