I know the ones baying for an eye for eye won't be satisfied but for Pakistan, the least amount of return (although it would be very high in public opinion) would be to to fly in and hit an isolated area and come back. For Pakistan, the main concern is Kashmir. If India claims to have hit non-state actors (all indications are that anything at scale being discussed in India is a joke), then Pakistan won't go in for an overt strike on Indian military formations. If we do then we are on the war path. For Pakistan, the Kashmir cause has to be supported and it has to be supported through avoidance of war.
This does not mean that Pakistan cannot and won't respond to Indian provocations. They know and we know we have the means and the wherewithal to do it. I state with full confidence that Pakistan will level the playing field one way or the other.