Well what act are you asking about write clearly ?? .
Second beheading culture was introduced by pakistan on loc , they along tlwith theur terrorist group attacked and beheaded our soldiers somewhat in 1999 or 2000 , we returned the favor with doing cross border raid on a terrorist launchpad , we killed terrorist along with pakistani army personnel there , and came back with their heads .
Now pakistan didn't cried much about it in international media as it would attracted a answer from our side with proper evidence of heads of pakistani solduer along with terrorist in a area , that gives a proof of them helping terrorist in infiltrating to kashmir .
From that time , they did it several time and each time it is answered in bigger numbers