Maharaja appealed to Lord Mountbatten and not to India. https://secure.wikimedia.org/wikipedia/en/wiki/Kashmir#Year_...
In the last days of 1948, a ceasefire was agreed under UN auspices, but since the plebiscite demanded by the UN was never conducted, relations between India and Pakistan soured,[32] and eventually led to two more wars over Kashmir in 1965 and 1999.
India also annexed Hyderabad state by sending insurgents to Hyderabad. https://secure.wikimedia.org/wikipedia/en/wiki/Osmanistan