KARACHI, April 2—Pakistan today warned India that “serious consequences” could result from Indian actions that Pakistan regarded as grave interference in her internal affairs.

The warning was delivered by the Pakistan Foreign Office in Islamabad through the Indian High Commission there to New Delhi. It protested Indian sympathy and support for an East Pakistan secessionist movement that the Pakistan Government is trying to suppress. This was Pakistan's third formal protest in a week to India over the East Pakistan situation.

Today's communication was a formal protest against the adoption of a resolution by the Indian Parliament expressing solidarity with and support for the East Pakistan resistance movement. New charges of Indian assistance to the resistance forces were also made today in Islamabad.