KARACHI, Pakstan, April 27—The Pakistan radio said tonight that Pakistani armed forces had “destroyed all anti state elements in the entire coastal region of East Pakistan.”

The coastal strip is important because it includes the key maritime shipping centers of Chittagong, Khulna and Chalna. They are the outlets for exports that bring in much of Pakistan's foreign exchange earnings.

The radio also broadcast details of a martial‐law decree promulgated in Dacca, which said that “anyone found destroying means of communication or Government property will be liable to punishment,” including the death penalty.

Meanwhile, there is much talk here about the death toll in East Pakistan, where 80,000 people are said to have been killed this year, a large proportion before the army's move against Bengali separatists last month.

According to estimates widely repeated in West Pakistan, Bengali troops, policemen and militant civilians killed 35,000 members of East Pakistan's Bihari minority and several thousand Pathans and members of other non‐Bengali ethnic groups. Most of these, it is said, were killed before the army struck on March 25.

Similarly it is widely said in influential circles here that of the 40,000 Bengalis reportedly killed during the East Pakistani crisis, most were armed irregulars or members of Bengali military or police units. Most of the others, it is said, were civilians accidentally killed during the fighting.

These estimates have not been put forward officially, but they are important because the high casualty toll reported among non‐Bengalis earlier in the year seems to many West Pakistanis to justify the vigor with which the army moved against the separatists.