<br/>The Railways will finetune its system of conducting examinations with checks and balances to prevent leakage of question papers. Responding to questions at a press conference in New Delhi on Tuesday, Railway Board Chairman, Vivek Sahai said the new system is aimed at making the leakage of question papers a remote possible. <br/> <br/>Expressing his grave concern over the recent leakage of question papers in Central Railway, Mr. Sahai said a single individual heading the Railway Recruitment Board (RRB) was responsible. Asked whether Railways will cancel the examination, Mr. Sahai said the Raiway Board is awaiting the report of the CBI before taking any decision.<br/>