"We will take this up very firmly with the Pakistan government," External Affairs Minister Salman Khurshid told TimesNow television.
He said the killing and mutilation of the Indian soldiers was "an extremely sensitive matter" and "a matter of great concern to everyone".
"These are matters on which every dimension has to be examined very carefully before we say what we propose to do," he added.
Indian officials said that Pakistani soldiers, said to be from the Baloch regiment, sneaked into Jammu and Kashmir Tuesday under the cover of a thick fog and killed two Indian soldiers and wounded a third.
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