Since we got Married. Myself sHradDha and my husband Ninad try to create our own set of memories by travelling to every place on Budget!
We went to USA in 2.5 lakhs INR for 18 days for two people. Includes flight ,stay, food, shopping!
We went to Europe ( Paris Switzerland, Belgium) 2.00 lakhs INR includes Flight ,stay,food, shopping!
Krabi ,Phi Phi islands we did them in 75000 INR includes flight, stay, food, shopping 
How we did this? ?
We have invested alot of time googling!
We collected reviews, local websites ,tips and reviews and then planned mirco details of the trip thanks to Google.
You search it and you get it.
Flights were always cheaper on skyscraper website ,even Kayak.
Food we carry locally from our country that will stay for couple of days.
Booking of sight seeing we plan depending on Google Search.
Some time we book online.
Like you have TELPAS for Switzerland
You have passe navigo to train on subway for Paris.
Newyork City pass for USA and so on.
Plan 3 months or 4 months prior.
Google as much as you want.
Gather information and then Iām sure you will be able to plan your trip on budget.
Idea is Do it yourself Rather wasting money on agency!
Give your googling skills a Try!! 