Rapid Action Battalion (Rab) today sent three separate letters to CID, BRTA and NBR in connection with Monir Hossain, better known as "Golden Monir" Lt Col Ashique Billah, legal and media wing director of Rab, confirmed the development to The Daily Star tonight. A letter was sent to the Bangladesh Road Transport Authority (BRTA) from Rab to investigate the Monir's cars while