From the Himalayas in the north, to the Nilgiris in the south - for a hundred years,little steam trains have climbed through the clouds and into the wonderful world of Indian Hill Railways.The Darjeeling Himalayan Railway:It is so close to the people that is flows like a river through their lives. But the new generation of Ghurkas, torn between family duties and personal ambitions, discover that the old steam railway may be the only constant.The Nilgiri Mountain Railway:A romantic line, popular with honeymooners, driven by love and devotion - as well as steam. It snakes through the jungle to Ooty, where the railway celebrates its centenary year with a beauty contest, a new baby and an unexpected wedding.The Kalka-Shimla Railway:Shimla was once the summer capital of the Raj. They left behind a divided India - and a railway. Today, the Station Master at Shimla is waiting for a promotion, his boss is waiting for a transfer - and everybody is waiting for snow.