Whether or not he meant the words he spoke , we will see in a few months.
Going by past record, I dont think this is any different. As I said one or two months before he starts singing the "peace at any cost" tune again.
Suspend the peace talks, cancel any/all economic help/collaboration with Pak, announce some until the martyr's head is given back and is given the funeral. Then he could also announce some 'gifts' like few dozen APCs or guns to Afghanistan in the light of Indo-Afghan friendship..there are so many things.. In this time Pak needs peace at the eastern borders more than we need it. That is something this sardar does not seem to understand and does not use to extract the maximum mileage for India.