UNITED NATIONS, N. Y., April 8—Pakistan charged here today that India was interfering directly in East Pakistan by using “armed infiltrators in plain clothes,” by sending in truckloads of army and by massing six divisions on the border.

These moves have been checked by Pakistan, it said, in spite of hostile propaganda.

The charges were in a note with a covering letter from Ambassador Agha Shahi of Pakistan asking Secretary General Thant to circulate the note to the 127 member Governments.

India, the note said, “while professing allegiance to the United Nations Charter, is attempting to demolish one of its cornerstones by flouting the principle of noninterference in the internal affairs of member states.”