Excuse me Sir, was not it Pakistan that sponsored Taleban in its soil on the promise that Taleban will help Pakistan on the Kashmir issue once they are in power in Afghanistan?
Now, it is the Taleban that is sponsoring terrorism in Pakistan with the financial encouragement from India. You have slapped your own face and are now blaming others for the devil you are facing.
Goes to show how much you know about the situation.
Those who you are referring to, are bunch of mercenaries, called TTP , and they got nothing to do with the Afghan Taliban. This group was formed by some individuals which were "released" by CIA from Guantanamo Bay, flown into Afghansitan and then use afghan soil to launch terror operation right under the nose of CIA/RAW. Your ignorance is not my problem but I would strongly recommend to educate yourself.