I have passed icse last year. i lost my pre-board marksheet. is pre-board report is of any use in future? plz plz reply.

Pre-board marksheets are of no use generally. Most important is your 10 and 12 marksheets and certificates. If you happen to loose these you can get another copy from ICSE, by putting in an application. If you want duplicates of pre-board marksheets you could approach the relevant departments.

It's of no use. Don't worry.