Actually it can. The Kashmir resolutions are under Chaper VI of UN Charter, making these resolutions, 'advisory' and not 'compulsory' in nature.
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I will also make another point here. The allegation that it was India, that refused demilitarization of Kashmir or that it reneged on UN resolution is actually a subterfuge.There is a second side to every story.
As per Document 1100, Para 75, Pakistan was to '
agree to withdraw its troops from that State' and '
use its best endeavor to secure the withdrawal from the State of Jammu and Kashmir of tribesmen and Pakistan nationals not normally resident therein who have entered the State for the purpose of fighting'. UN was then to notify the GoI '
that the tribesmen and Pakistan nationals referred to in Part II A 2 hereof have withdrawn' and '
that the Pakistan forces are being withdrawn from the State of Jammu and Kashmir'. Only after receipt of this intimation, the GoI was '
to begin to withdraw the bulk of their forces from the State in stages to be agreed upon with the Commission'
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More important than Pakistan 'agreeing' to demilitarize the Kashmir region, was the fact that Pakistan had to completely remove 'the tribesmen and Pakistan nationals'. It is this presence of 'the tribesmen and Pakistan nationals' and further infiltration of Pakistani nationals into the region, that had prompted India to insist on the presence of a higher number of Indian troops in Kashmir - more than the number that UN had suggested.
Contrary to the popular belief in Pakistan, it is actually Pakistan which reneged on UN resolution. India stands on a firm legal ground.