Tally Entry Problem

Hello,
i am using tally 5.4
i was doing voucher entry of Mr. saurabh tyagi
suddenly light has gone and my computer also became switched off. when i restarted my computer, those entries was currepted which are of month April. when i enter in the ledger of mr saurabh tyagi and want to see the details of April Month computer says that the file tr01299.500 file is currepted and tally become closed.
is there any possibility to remove the april months entries of mr. saurabh tyagi without entering them.
or is there any other solution that can prevent me to enter all data again. please tell me solution in detail.
Thanks
Nafees Ahmad