Indian Railways - Unofficial Sites:Pot Pourri

Mostly Pictures
Avinash Pandey's Rail Images
Bharat Vohra & Siddharth Joshi's Rail in India
India's Colorful Railway - John Lacey
Dr.K.J.Walker's Home Page
 
Region Specific
Rajan Mathew's Konkan Railway - The Net Resources Centre
Mumbai Rail Vikas Corporation - G.R.Rao
 
A Little of Everything
Apurva Bahadur's Indian Railway Pictures'
Cross Country on Indian Railways - Shantanu Sen