Udhagamandalam, The "Queen of hill station" is the capital of Nilgiri district. It is one of the best tourist resorts. Nilgiris is called as "Blue Mountains".The name Nila, we know to have been used over 800 years ago since,the King of the Hoysalas Vishnu Vardhana, who ruled from 1104 to 1141 A.D. seized the Nilgiris Plateau.His general Ponisia recorded this fact in 1117 A.D. with mention of Todas.The name Nilgiri was due to the blue haze which envelopes the range with most distant hills of considerable size.

This Nilgiri territory came into possession of East India Company as part at the ceded lands, held by Tipu Sultan, by the treaty of Srirangapatnam in 1799. Rev. Jacome Forico, a priest was the first European who visited Nilgiris in 1603 and released his notes about the place and people of Nilgiris. In 1812 surveyor William Keys and Macmohan visited the top of the plateau. In 1818, Wish and Kindersley, Assistant and Second Assistant to Collector of Coimbatore visited this spot and submitted their experience report to the Collector of Coimbatore Mr. John Sullivan. Collector Mr.John Sullivan with his party proceeded to Nilgiri Mountain and made camp at Dimbhatti, just north of Kotagiri in 1819 in January. Again in May 1819 he came to the Hill of Ooty and began the construction of his bungalow at Dimbhatti (near Kotagiri), The first European dwelling on the hills. Then the Collector John Sullivan laid path from Sirumugai (near-Mattupalayam) to Dimbhatti in 1829 and the work was completed in May 1823. The Best route up to Coonoor was laid in 1830-32. Ootacamund remained still undiscovered.

The Coonoor-Mettupalayam road was extended to Udagamandalam, covering a distance of about 15 km. The Kotagiri-Mettupalayam road (about 34 km long) which was 8 ft wide to begin with, was widened to 17 ft in 1872-75 with a gradient of one in 17 by the Dist. Engineer, Major Morant R.E. and handed over to the District Board in 1881. During the period from 1819 to 1830, John Sullivan's contribution was, apart from laying the route to Ooty, that he built the first house called Stone House in this place. This formed the nucleus of Government offices. Further, at his own expense, he conducted experiments on agricultural and horticultural crops and in animal husbandry to find the most suitable crops and breeds of milch animals for future settlers.Next to the magnificent task of laying the road to Ooty, the British took up, around 1880, the stupendous task of connecting Mettupalayam to Ooty by rail. A Swiss engineer, M. Riggenback and Major Morant of Kotagiri road fame prepared an estimate of 1,32,000 pounds (currency) for laying the rack railway and floated a company called The Rigi Railway & Co Ltd. Since capital was not forthcoming, Mr. Richard Wolley of Coonoor came forward to advance money on the condition that the contract would be entrusted to Mr. Wolley by the Government of Chennai.