Faced with the possibility of being banned for a few matches by the BCCI, the beleaguered Harbhajan Singh has appealed to the cricket board to give him 'one final chance' before taking disciplinary action against him.The 27-year-old off-spinner, who has already been banned by the IPL organisers for rest of the tournament for slapping his India teammate S Sreesanth, has written a fresh letter to the BCCI just two days ahead of the disciplinary hearing to be conducted by the Board-appointed Commissioner Sudhir Nanavati in Ahmedabad.In his letter, Harbhajan said he had apologised to Sreesanth after the incident in Mohali and was willing to do it again in public, a TV channel reported on Wednesday."Along with accepting my most sincere and heartfelt apologies over this incident, I would like to appeal to the BCCI's sense of fair play and ask for one final chance before taking any disciplinary action against me over this incident," he said in the letter.Although the IPL governing council has already penalised him, the BCCI will also punish him separately for the level 4 offence as per the ICC Players' Code of Conduct. A level 4 offence leads to a maximum punishment of a life ban or a minimum ban of five Tests or 10 ODIs.When contacted, BCCI Secretary Niranjan Shah said Harbhajan has been writing a number of letters and it was not proper for him to divulge the contents."The inquiry is going on. We are waiting for the report," Shah said.