Bro, here are some requirements to become monitor:
First & foremost is that u need to have 100 ratings.
For Timeline monitor, minimum 500 correct Timeline updates. U can start updating Timeline after achieving 100 ratings.
For News monitor, minimum 50 News posts to be made. U can start posting News after achieving 50 ratings.
For...
more... PNR monitor, u need to predict 1000 PNR's correctly.
After achieving 100 ratings, Private messages will be activated. Once u complete the above criteria, u can put a Private Msg to Moderator sir to make u a monitor.