Pie chart - SDL - JSFiddle

Height increased, set allowOverlap and padding

HTML

<script src="https://code.highcharts.com/highcharts.js"></script>
<script src="https://code.highcharts.com/modules/exporting.js"></script>

<div id="container"></div>

JavaScript

Highcharts.chart('container', {
  "chart": {
    "inverted": false,
    "backgroundColor": "rgba(255,255,255,0)",
    "reflow": false,
    "height": 550,
    "width": 990,
    "plotBackgroundColor": "rgba(255,255,255,0)",
    "zoomType": "xy",
    "type": "pie",
    "options3d": {
      "enabled": false
    }
  },
  "title": {
    "text": null
  },
  "tooltip": {
    "enabled": true,
    "shared": false,
    "borderWidth": 1,
    "borderRadius": 1,
    "backgroundColor": "#ffffff",
    "crosshairs": [null, null],
    "followPointer": true
  },
  "plotOptions": {
    "pie": {
      "animation": {
        "duration": 700
      },
      "cursor": "pointer",
      "allowPointSelect": true,
      "showInLegend": false,
      "turboThreshold": 0,
      "stickyTracking": false,
      "events": {},
      "point": {
        "events": {}
      },
      "series": {
        "pie": {}
      }
    }
  },
  "legend": {
    "enabled": false,
    "item": {},
    "borderWidth": 0,
    "layout": "horizontal",
    "eQLegendPlacement": "CHART",
    "backgroundColor": "rgba(255,255,255,0)",
    "align": "center",
    "verticalAlign": "bottom",
    "margin": 0,
    "padding": 5
  },
  "credits": {
    "enabled": false
  },
  "exporting": {
    "enabled": false
  },
  "lang": {
    "noData": ""
  },
  "series": [{
    "name": "Id",
    "internalName": "Bugs__Bugs__Msr_Id_1",
    "data": [{
      "eQCategoryValue": "yogini",
      "name": "yogini",
      "y": 2427331,
      "color": "rgba(106,0,255,1)",
      "sliced": false
    }, {
      "eQCategoryValue": "AditiB",
      "name": "AditiB",
      "y": 3664534,
      "color": "rgba(164,196,0,1)",
      "sliced": false
    }, {
      "eQCategoryValue": "PrajaktaG",
      "name": "PrajaktaG",
      "y": 4900406,
      "color": "rgba(240,163,0,1)",
      "sliced": false
    }, {
      "eQCategoryValue": "mayank",
      "name": "mayank",
      "y": 1099770,
      "color": "rgba(229,20,0,1)",
      "sliced": false
    }, {
     ...