hi arul...im unable to attach...some proxy error is coming....
Please consider the data is in the follow way...

s. no id name branch
1 12 pavani ECE
2 1234 anu ECE

3 23423 bala CSE
4 1231 siva CSE
5 1231 aswin cSE

6 12 pavani EEE
7 1234 anu EEE

After row#2, an empty line is der,similarly after row#5.
I want to group the rows 1,2; 3,4,5; and 6,7 considering the empty row as parameter.