The letter is from HDFC bank regarding a loan taken by P.S. Guha. It states that the last post-dated cheque for the loan is due to be deposited on January 29, 2009. It requests the customer to provide a new set of 12 post-dated cheques from February 2009 to January 2010 for Rs. 6,802 each. It reminds the customer to write the loan account number on the back of each cheque and submit them to the listed addresses.