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:
Arambagh (Lok Sabha constituency)
Table title:
General election 2004
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 > CPI(M) </td><td class="highlighted"  colspan=1 rowspan=1 > Anil Basu </td><td colspan=1 rowspan=1 > 744,464 </td><td colspan=1 rowspan=1 > 77.16 </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 > Swapan Kumar Nandi </td><td colspan=1 rowspan=1 > 151,962 </td><td colspan=1 rowspan=1 > 15.75 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > INC </td><td colspan=1 rowspan=1 > Pradip Datta </td><td colspan=1 rowspan=1 > 68,414 </td><td colspan=1 rowspan=1 > 7.09 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th class="highlighted"  colspan=3 rowspan=1 > Margin of victory </th><td class="highlighted"  colspan=1 rowspan=1 > 592,502 </td><td colspan=1 rowspan=1 > 61.41 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=3 rowspan=1 > Turnout </th><td colspan=1 rowspan=1 > 9,64,840 </td><td colspan=1 rowspan=1 > 81.24 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=2 rowspan=1 > CPI(M) hold </td><th colspan=1 rowspan=1 > Swing </th><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
Who won the Arambagh seat in the 2004 Lok Sabha polls, what party was he from, and what margin of victory did he have?
Answer:
In the 2004 Lok Sabha polls, Anil Basu of CPI(M) won the Arambagh seat by a margin of 592,502 votes.