Hi Tatarao, Kerala in itself consists of multiple tourists destinations which includes Munnar, Thekkady, Alleppey, Kovalam, Varkala, Kanyakumari, Cochin and Wayanad too. Kerala tour ranges from 3 nights to 7 or 8 nights depending upon interest of locations to be covered. Kerala is famous as ‘All in One’ because it provides you the experience of multiple destination of varying type. This is because: Munnar is a hill station, Thekkady is a Wild Life Sanctuary, Alleppey is Backwater Area where you can enjoy Houseboat Stay, Kovalam is known for its beaches, etc. For four Days package, generally people opt to cover 2 nights in Munnar, 1 night in Alleppey and 1 night in Thekkady. (You can also choose, 1 night in Cochin, 2 nights in Munnar and 1 night in Alleppey). Generally a Kerala package includes Accommodation, Breakfast, A private air-conditioned car with a driver who will be there with you for all the four days, All sightseeing is included, Fuel charges, Driver allowance, Parking Charges, Tolls and Taxes and Services Taxes are also included. With All these inclusions, and a budget 3* property stay, will cost you around 10 thousand to 13 thousand per person approximately.
Basically it totally depends upon your holidaying style..anyways the normal budget for a 4 day Kerala trip will be around 15k and max to max 20k. But if you are opting for a luxurious holiday then the budget may go beyond.
It depends where you all wants to go and what u want to cover Top 5 places are usually Munnar,Kovalam,Vrakala,Thekkady,Kumarakom Approx idea including your stay nd boat stay it should be around 15000-20000rs