Hi Ankita, I have attached with this comment few options for you, you can click on them to find more details about them. If you want to talk to someone about the packages simply fill in your details in the form and you will receive a call.
You can start your trip from Cochin because it has major air connections and it can go on
day 1: Cochin
day 2: Munnar
day 3: Eravikulam national park (Munnar)
day 4: Thekkady day 5: Thiruvananthapuram day 6: Kanyakumari
day 7: Alappuzha