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My openlayers code is as follows. But there is shift in between both the layers. How to rectify it?

map = new OpenLayers.Map( 'map_element',{} );           
        var gsat = new OpenLayers.Layer.Google(
            "Google Satellite",
            {type: G_HYBRID_MAP, 
             numZoomLevels: 22, 
             isBaseLayer: true, 
              {sphericalMercator: true}
        var roads = new OpenLayers.Layer.WMS(
        "Roads", "http://localhost:8088/geoserver/cite/wms",
        {layers: 'cite:viz_roads',
                     isBaseLayer: false,
                     transparent: true, 
                     opacity: 1.0} 

        var org = new OpenLayers.Layer.WMS(
        "points of interest", "http://localhost:8088/geoserver/cite/wms",
        {layers: 'cite:organisations', 
                     isBaseLayer: false,
                     transparent: true, opacity: 1.0} 
        map.addControl(new OpenLayers.Control.LayerSwitcher({}));

map.setCenter(new OpenLayers.LonLat(83.324947,17.732909), 14);

This is the snapshot of the map:

enter image description here

Observe the shift from position 1 to 2. 1 is the actual position where the feature should be. It is rectified automatically when I turn layer off and on. But how to rectify this error while zooming?

share|improve this question
What is the projection of your map? I don't see you setting it in your code. And what is the projection of your WMS service? – Devdatta Tengshe Apr 30 '13 at 5:36
@DevdattaTengshe both are in 900913 projection. – Jeevan Patnaik May 1 '13 at 20:29

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