‘Show more results’ while scraping mobile details from flipkart

My question is same as Scraping all mobiles of Flipkart.com. I tried the solution given over there, but that change in the start variable is not working , and I can only scrape the starting twenty mobile information only.

import urllib#.request  # for py 3.x
import re  #regural expression for data manipulation
from bs4 import BeautifulSoup


url="http://www.flipkart.com/mobiles/samsung~brand/pr?sid=tyy%2C4io&start=50"

regex = '<a href=(.+?)>'  # it will find the title
pattern=re.compile(regex)

htmlfile = urllib.urlopen(url)  #//.request is in 3.0x

htmltext= htmlfile.read()

docSoup=BeautifulSoup(htmltext)
abc=docSoup.findAll('a')





title=re.findall(pattern,c)

for i in title:
    print i

The initial value of start was 21, so increased to 50, but still I am getting the same result.

Answer

There are 4 ajax request for the page,check the screenshot,try to code which dynamically change the start in each request,use try catch to handle exception handling