10K per person is all you want if you travel in a budget. It all depends on your stay and transportation option. These two are the most important and flexible expenditure which you can control and these two are most likely to affect your budget. Research well before travelling.
If you are planning take flight journey then it will cost you around 15-20k for the entire trip. And if planning to go by train then it will cost you about 10-15k for the trip.