Dear Neha,
As per as the shops and establishment Act is concern, it is applicable only, if the establishment is not a factory( pls refer the definition of factory).
The requirement of canteen and employee pre medical check up applies on those factories which has the workforce of morethan 250.
However one should get the worker (working directly in food processing) medically examined for all the establishment wherever the food processing is going on.
Preferably the test is LFT( lung functioning test) and routine test(includes blood, urine etc.).
Regards
Tauqueer
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