Multiple Validation group on a same field

Hi Keerthanakr , 
I hope ,I have understood your requirement correctly. 
I updated the code, which you can try. 
Here, Button_A and Button_B will check requiredness for "Name" textField. 
Whereas, Button_C will check requiredness for "Mobile_Number" textfField. 

a!localVariables(
  local!name,
  local!number,
  {
    a!columnsLayout(
      columns: {
        a!columnLayout(
          contents: {
            a!textField(
              label: "Name",
              labelPosition: "ABOVE",
              saveInto: local!name,
              value: local!name,
              required: true,
              refreshAfter: "UNFOCUS",
              validationGroup: "Name_Condition",

            ),
            a!textField(
              label: "Mobile Number",
              labelPosition: "ABOVE",
              value: local!number,
              saveInto: local!number,
              required: true(),
              refreshAfter: "UNFOCUS",
              validations: {},
              validationGroup: "MobNumber_Condition"
            )
          }
        ),

      }
    ),
    a!buttonArrayLayout(
      buttons: {
        a!buttonWidget(
          label: "Button A",
          style: "",
          submit: true(),
          validationGroup: "Name_Condition"
        ),
        a!buttonWidget(
          label: "Button B",
          style: "",
          submit: true(),
          validationGroup: "Name_Condition"
        ),
        a!buttonWidget(
          label: "Button C",
          style: "",
          submit: true(),
          validationGroup: "MobNumber_Condition"
        )
      },
      align: "START"
    )
  }
)

The parameter name "validationGroup" is in singular and only accepts a single group.

Can you help me to understand what you want to achieve? There are a few options we could discuss.

This will be the ideal way of achieving this. Instead of having one validation group per button, you should have one validation group per field and then use it in the required buttons.