Seven of us have either flown in or railroaded to Nagpur from all over to bid adieu to the last holdout from Indian Railways' great Narrow Gauge networks. Everyone knows the narrow gauge hill railways like the Kalka-Simla, the Neral- Matheran, the Darjeeling Himalayan and the Kangra Valley Railway, endearingly but mistakenly called "toy-trains". But hardly anyone knows about the great NG systems of peninsular India that quietly went about the serious business of transporting goods and people, for over a hundred years. There was one extensive network built by the Gaekwads of Baroda centred on Dabhoi in Gujarat, another built by the Scindias around Gwalior, a third called the Barsi Light Railway that ran the length of Marathwada from Latur to Miraj and the most extensive of them all — the Bengal & Nagpur Railway's Satpura System. Dabhoi & Barsi are history having been converted to Broad Gauge and Gwalior is all but abandoned. Now it's the turn of the Satpura lines to exit stage right; starting October 1 all the branches of the Satpura network will close one by one for gauge conversion.