Well since you seem to have “knowledge” of such documents would appreciate a link …
UNSC called for a “complete” withdrawl of forces from Pakistan, which never happened … also the UNCIP resolution clearly state that the council has to inform India and then they have to demilitirise … as for UNCIP not being from UN resolutions … let me tell you ALL UN resolutions refer to the condition of UNCIP resolution … last time in 1957 , when perhaps the “Kashmir” issue was dealt with specifically also metions this resolution …
Observing further that the Governments of India and Pakistan recognize and accept the commitments undertaken by them in the resolutions of the United Nations Commission for India and Pakistan dated 13 August 1948 and 5 January 1949, which envisage the determination of the future status of the State of Jammu and Kashmir in accordance with the will of the people through the democratic method of a free and impartial plebiscite, and that Mr. Jarring felt it appropriate to explore what was impeding their full implementation
Lastly … location of UNMOGIP in Islamabad … that is really a joke i guess … India’s stand is that after the Simla agrement UNMOGIP’s mandate (it is ONLY responsible for monitoring the cease fire line in Kashmir !!!) has lapsed so it has restricted its activities to LOC on Indian side only .Though they do provide them with necessary support (infact UNMOGIP has a laison office in Delhi) but it has not taken any complaints to them on ceasefire violation.
So remember UNMOGIP is not a UN agency to solve the Kashmir problem, but it is only an agency to monitor the “ceasefire” line in Kashmir.