Pak blaming India again

After the Karachi terror attack, Pakistan as usual blamed India and said that terror gang which operates from India did all this attack. But the reply was given by Indian government very quickly that they don’t supply terrorists to the neighboring countries. Each and every time after a terror attack in Pakistan, their government will point their fingers towards India. I don’t know why they do like this. When terrorists are manufactured in Pakistan itself, why should we give them terrorists attack? Pakistan should change their attitude towards India.