The journey from Pampore to Chennai is one of the longest in India, covering 3200 km. You must reach Jammu Tawi station to board a train to Chennai Central (MAS). The Andaman Express or similar services are options. Expect a journey of over 60 hours. Air travel is highly recommended for this distance.
Total Distance: 3200 km by road, 2700 km air distance.
This is a very long journey; prepare accordingly.
November to February for pleasant weather.