Hello PABITRA BHUNIA
Welcome to Microsoft Q&A Platform, thanks for posting your query here.
You can use the Placement Constraint where you can specify the different node names.
Under the Service Manifest you can add the Placement constraint tag.
<ServiceTypes>
<StatelessServiceType ServiceTypeName="VotingWebType" >
<PlacementConstraints>(NodeName==_Node_0)</PlacementConstraints>
</StatelessServiceType>
</ServiceTypes>
Please refer these documents:
Hope this helps.
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