Your route .
Rotorua — 2 nights stay
Pickup self drive car at Auckland airport.
Arrive in Auckland airport and drive down to your hotel in Rotorua..
Fly to Queenstown
Queenstown — 3 nights stay
Drop your self drive car at Auckland airport. Pickup another self drive car at Queenstown airport
Checkout of your hotel. Board your flight to Queenstown. Check-in to your new hotel..
Queenstown Free Walking Tour.
Queenstown Mall and dining at Fergburger.
Fly to Melbourne
Melbourne — 3 nights stay
Drop self drive car at Queenstown airport.
Checkout of your hotel. Board your flight to Melbourne. Check-in to your new hotel..
Car Hire at Melbourne - 24 hours.
A bit of self exploration around Queen Victoria Market, Federation Square and other places.
Take your flight back to India. Hope you end up with a lot of memories and a few souvenirs too..