Hi Saif. Welcome to Wikivoyage! The main thing to look at is the Manual of Style, or else ask me if you have any other questions.
By the way, I've responded to your suggestions at Talk:Dhaka if you'd like to take a look. Over the next few months, I'm hoping to really improve the Bangladeshi articles on this wiki. Happy travels! JamesA >talk 13:40, 1 February 2013 (UTC)