Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
Gopalpur (Odisha Vidhan Sabha constituency)
Table title:
Summary of results of the 2009 Election
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=2 rowspan=1 > Party </th><th colspan=1 rowspan=1 > Candidate </th><th colspan=1 rowspan=1 > Votes </th><th colspan=1 rowspan=1 > % </th><th colspan=1 rowspan=1 > ± </th></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > BJD </td><td class="highlighted"  colspan=1 rowspan=1 > Pradeep Kumar Panigrahy </td><td class="highlighted"  colspan=1 rowspan=1 > 37,612 </td><td colspan=1 rowspan=1 > 42.77 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > INC </td><td class="highlighted"  colspan=1 rowspan=1 > Trinath Behera </td><td class="highlighted"  colspan=1 rowspan=1 > 18,854 </td><td colspan=1 rowspan=1 > 21.44 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Independent </td><td colspan=1 rowspan=1 > Anuja Kumar Nayak </td><td colspan=1 rowspan=1 > 14,679 </td><td colspan=1 rowspan=1 > 16.69 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > BJP </td><td colspan=1 rowspan=1 > Bibhuti Bhusan Jena </td><td colspan=1 rowspan=1 > 13,112 </td><td colspan=1 rowspan=1 > 14.91 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Independent </td><td colspan=1 rowspan=1 > A. Raghunath Verma </td><td colspan=1 rowspan=1 > 1,094 </td><td colspan=1 rowspan=1 > 1.24 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > SAMO </td><td colspan=1 rowspan=1 > Ajit Kumar Dalai </td><td colspan=1 rowspan=1 > 1,064 </td><td colspan=1 rowspan=1 > 1.21 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Independent </td><td colspan=1 rowspan=1 > Binaya Kumar Padhi </td><td colspan=1 rowspan=1 > 966 </td><td colspan=1 rowspan=1 > 1.10 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Independent </td><td colspan=1 rowspan=1 > Debasish Pramanik </td><td colspan=1 rowspan=1 > 565 </td><td colspan=1 rowspan=1 > 0.64 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=3 rowspan=1 > Majority </th><td class="highlighted"  colspan=1 rowspan=1 > 18,758 </td><td colspan=1 rowspan=1 > 21.33 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=3 rowspan=1 > Turnout </th><td colspan=1 rowspan=1 > 88,010 </td><td colspan=1 rowspan=1 > 55.55 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=2 rowspan=1 > BJD gain from INC </td><th colspan=1 rowspan=1 > Swing </th><td colspan=1 rowspan=1 > 3.74 </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
Who did Pradeep Kumar Panigrahy defeat and what was the vote margin?
Answer:
In the 2009 election, Biju Janata Dal candidate, Pradeep Kumar Panigrahy, defeated Indian National Congress candidate, Trinath Behera, by a margin of 18,758 votes.