Instead of booking a hotel consider searching for a guesthouse or homestay as they tend to be more affordable and provide opportunities to interact with local people
Travelling in groups always brings down your cost as most of the expenses get split up
It is the best way to take back souvenirs for people if you are travelling on a budget
Unsplash public transport credits
Always avoid local taxis as they can increase your travel cost instead opt for metros buses or autos depending on your destination