Replace your main function with this one:

Function SpellNumberLak(ByVal MyNumber)
Dim Dollars, Cents, Temp
Dim DecimalPlace, Count
ReDim Place(9) As String
Place(2) = " Thousand "
Place(3) = " Lak "
Place(4) = " Crore "
' String representation of amount.
MyNumber = Trim(Str(MyNumber))
' Position of decimal place 0 if none.
DecimalPlace = InStr(MyNumber, ".")
' Convert cents and set MyNumber to dollar amount.
If DecimalPlace > 0 Then
Cents = GetTens(Left(Mid(MyNumber, DecimalPlace + 1) & "00", 2))
MyNumber = Trim(Left(MyNumber, DecimalPlace - 1))
End If
Temp = GetHundreds(Right(MyNumber, 3))
If Temp <> "" Then Dollars = Temp & Place(Count) & Dollars
If Len(MyNumber) > 3 Then
MyNumber = Left(MyNumber, Len(MyNumber) - 3)
Else
MyNumber = ""
End If
Count = 2
Do While MyNumber <> ""
Temp = GetHundreds(Right(MyNumber, 2))
If Temp <> "" Then Dollars = Temp & Place(Count) & Dollars
If Len(MyNumber) > 2 Then
MyNumber = Left(MyNumber, Len(MyNumber) - 2)
Else
MyNumber = ""
End If
Count = Count + 1
Loop
Select Case Dollars
Case ""
Dollars = "No Dollars"
Case "One"
Dollars = "One Dollar"
Case Else
Dollars = Dollars & " Dollars"
End Select
Select Case Cents
Case ""
Cents = " and No Cents"
Case "One"
Cents = " and One Cent"
Case Else
Cents = " and " & Cents & " Cents"
End Select
SpellNumberLak = Dollars & Cents
End Function


Note that this only works up to 99 Crore. You don't say what happens
above this.