Note 1: Climbing Routes: Ooty can be climbed by road from either Mettupalayam direction or from Mysore/Gudalur direction. Mysore route forks out at Mudmalai and merges back at Gudalur, either route will be scenic.
Note 2: Train Route: The supposedly world famous Mettupalayam to Ooty Nilgiris Mountain Railway is another option to climb up. It can be booked separately or along with your journey from Chennai or any other station to Coimbatore.
Note 3: Driving Down by road: Ooty Ghat roads are quite slippery during rains, so novice drivers need to take extra care while driving down. Its better to check your brakes, tires before starting the journey, and give ample breaks for your engine, break-chords to cool down. Even if it is not required, it is always better to drive down in lower gears which give you better grip on the road, and always remember to leave way for vehicles climbing up.