separate last 3 words & first 2 words from a string

Question

Hi,

 I have string str = "12.95102921601837,77.5755615066737,108, Parvatipura, VV Puram, Basavanagudi, Bangalore, Karnataka 560004, India"

now i want output as

                   string srt1 = 12.95102921601837

   string srt2 = 77.5755615066737

           string srt3 = 108, Parvatipura, VV Puram, Basavanagudi

                   string srt4 = Bangalore

                   string str5 = Karnataka

                   string str6 = 560004, India

i want this output.

Please its urgent....