urllib2.HTTPError: HTTP Error 403: Forbidden

# -*- coding: UTF-8 -*-
import urllib2

site= "http://www.nseindia.com/live_market/dynaContent/live_watch/get_quote/getHistoricalData.jsp?symbol=JPASSOCIAT&fromDate=1-JAN-2012&toDate=1-AUG-2012&datePeriod=unselected&hiddDwnld=true"

hdr = {‘User-Agent‘:‘Mozilla/5.0‘}

req = urllib2.Request(site,headers=hdr)

page = urllib2.urlopen(req)

 1 import urllib2
 2 
 3 site= "http://www.nseindia.com/live_market/dynaContent/live_watch/get_quote/getHistoricalData.jsp?symbol=JPASSOCIAT&fromDate=1-JAN-2012&toDate=1-AUG-2012&datePeriod=unselected&hiddDwnld=true"
 4 hdr = {‘User-Agent‘: ‘Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.64 Safari/537.11‘,
 5        ‘Accept‘: ‘text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8‘,
 6        ‘Accept-Charset‘: ‘ISO-8859-1,utf-8;q=0.7,*;q=0.3‘,
 7        ‘Accept-Encoding‘: ‘none‘,
 8        ‘Accept-Language‘: ‘en-US,en;q=0.8‘,
 9        ‘Connection‘: ‘keep-alive‘}
10 
11 req = urllib2.Request(site, headers=hdr)
12 
13 try:
14     page = urllib2.urlopen(req)
15 except urllib2.HTTPError, e:
16     print e.fp.read()
17 
18 content = page.read()
19 print content