Thanks for the suggestion. However, I was specifically looking for an html report.
Actually we are create a custom Log file please find the below description:-
->appending each line with test step name with description like custom messages or captured reqest and reponse.
->file is created for each testcase seperately.
->reading the file and putting the testcase based on file name and iterating the file and logging the step as defined in log file.
hope it will helpfull.