CBI today started questioning gangster Chhota Rajan in Tihar prison in connection with journalist Jyotirmoy Dey murder case. <br/><br/>Our correspondent quoting official sources said the CBI team reached Tihar Jail today where Rajan is lodged after being deported from Indonesia and began questioning him after completing necessary formalities. <br/><br/>Rajan's questioning in the case is likely to continue for some days. A special MCOCA court in Mumbai has granted the CBI permission to interrogate Rajan in the case.