NEW DELHI, April 1—With the Pakistani Army apparently establishing control of the main towns and cities of East Pakistan, the resistance fighters were reported turning to guerrilla tactics in the countryside, where travel is difficult.

They are reported destroying bridges, roads and ferries, keeping the army off balance and hampering the army's mobility.

For the second day, there were no broadcasts from radio stations that had identified themselves as voices of the in dependence movement.

Reports arriving in India from across the border told of heavy air and ground attacks by Pakistani troops against resistance forces in many towns and cities. Reports of great successes by the resistance forces, common only a few days ago, were no longer being heard.

The Government radio station in Dacca came back on the air after a two‐day silence that was caused, according to an unconfirmed report, by an attack that damaged the station equipment.

The first broadcast from Dacca monitored this afternoon in Calcutta was a stern army warning to the people of Chittagong, a stronghold of the in dependence movement, to re move all road barriers in front of their houses or face death.

The Government station in West Pakistan, at Karachi, re ported in its evening broadcast that there was “continuing calm” in all major towns in the East, including Dacca and Chittagong, as well as the country side.

No incidents or fighting were reported on this broadcast, which said Dacca “wore a busy look, and more shops were open and the number of buyers continuing to grow every day.”