CALCUTTA, INDIA, June 9.-East Pakistani refugees continued moving into the troubled Indian town of Barasat today as five foreign planeloads of medical supplies reached Calcutta to help fight the cholera epidemic.

Reserve policemen were called in yesterday to prevent Hindu-Moslem rioting from breaking out in Barasat, normally a town of 90,000 now flooded with more than 200,000 refugees. Some of the refugees had tried to set up camp in Moslem mosques.

The town, 15 miles north of Calcutta, remained tense today with East Pakistanis squatting by the roadside on muddy open ground and in official buildings.