Six boys - Arun, Anil, Bhanu, Bhaskar, Chaitanya and Charan are standing in a queue, not necessarily in that order. Also it is known that,
(i) Arun is standing at one of the ends of the queue.
(ii) No two boys, having their names starting with the same alphabet, are adjacent to each other.
(iii) The name of the boy who is immediately infront of Anil has the same letter as the first letter in his name as that of the boy who is immediately behind Anil.
(iv) Chaitanya stood immediately behind Arun

Who stood at the rear end of the queue?