Board indicating 1 in 12.5 gradient at Kallar, 7 kilometers from Mettupalayam. The rack and pinion system starts at this point. A video of train departing from Kallar can be [url=http://www.youtube.com/watch?v=5oO5HQ_xi9M&list=PL5R_q1uVxBFZfd_C4Vi9CE-