Thirty people were put under house quarantine in view of the COVID-19 threat on Wednesday.
Officials said that 149 people, including 132 at their houses and 17 in hospitals, were under surveillance in the district.
Meanwhile, 73 samples tested negative for COVID-19.
Results of samples collected from 18 people are pending, said a Health Department official.
The Health Department has urged all those returning from foreign countries not to conceal their travel history and to self-isolate themselves for 14 days.
The public have been asked to avoid large gatherings.
Those who have returned from COVID-19-hit countries and are experiencing fever, cough or respiratory illness should immediately contact the Direct Intervention System for Health Awareness (DISHA) or the control room, officials said.
Contact numbers: 1056, 0471-2552056 (DISHA), 0477 2239999 (district collectorate control room) and 0477 2251650 (District Medical Officer).
