Not able to acheive Multilevel calling of Powerscript files using Batch file

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PowerShell

Hi,

I have listed below sample code through which am trying to acheive Multilevel calling of Powescript files Batch file.
SingleLevel.ps1
function SingleLevel{
Write "This function is called directly from the batch file"
MultiLevel
}
MultiLevel.ps1
fucntion MultiLevel{
Write "This function is called from within SingleLevel function"
}

TestCall.ps1
SingleLevel

Scenario 1 : I have 3 files SingleLevel.ps1 and MultiLevel.ps1 and TestCall.ps1 all of which are placed in same folder and the same is set as environment path.
When i run the TestCall.ps1 file through Powershell Command Window we get the following output:
O/p
This function is called directly from the batch file
This function is called from within SingleLevel function
Scenario 2 : I have a batch file as coded below which calls SingleLevel,ps1
TestBatch.bat
%SystemRoot%\system32\WindowsPowerShell\v1.0\powershell.exe -file X drive:\X Folder\SingleLevel.ps1

Expected : SingleLevel.ps1 should have called MultiLevel.ps1.
Actual issue : MultiLevel.ps1 file is not called ..
I really appreciate any help regarding this :)

Regards,
Madhusudan
Note : I have set the environment variable "path" to appropriate path to enable it to fetch requied custom library functions.