1 feature types requested, but found 2 view params specified

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geoserver

Openlayers

Hi,
i am trying to zoom the plots which having plot numbers like
1
102,103
101&10
A/1
2-(A)
and ect.its working fin for all combination numbers except 101,102&103 combination its trowing error:

1 feature types requested, but found 2 view params specified

views in geoserver:

select * from plotboundary where nmindar='%nmindar%' and plno='%plno%'

parametrs:

Name   |Default Values|Validation regular expression
nmindar|Hanagawadi I A|^[\w\d\s]+$
plno   | 1            | ^[ A-Za-z0-9_ *@.#&+-,()-_\/{,&}]*$

passing values using ajax:

var nmindar = $("#ddlIndustrialarea").val();
      var plno = $('#ddlPlot').val();
      $.ajax({
          url: 'http://192.168.XX:8089/geoserver/XX/ows?service=WFS&version=1.0.0&request=GetFeature&typeName=XX:vwplot&maxFeatures=5000&outputFormat=text/javascript',
          contentType: 'application/json',
          dataType: 'jsonp',
          jsonpCallback: "parseResponse",
          data: {
              viewparams: "nmindar:" + nmindar + ";plno:" + plno
          },

What I have tried:

i have tried to change regex but getting same error