>I creater a index like this
>index on lcode+sec+result tag lsr
>and also make this group in report designer. But i have not required result.
>lcode and sec is giving me good response but result in not.

Please give more details on what exactly is not working as you expected. Do you have one data group or three data groups? Are you sure the index is the current index for the table at the time the report is run? Are you preparing the data head of time or is it being opened in the data environment of the report?