When money is limited, the best room to start with is usually the one that hurts your daily life the most. For many people that’s the kitchen or the main bathroom. Ask: where do you feel the most frustration every single day? A dark, cramped kitchen where cooking is a headache? A bathroom with leaks and poor ventilation? That’s your starting point.
You can also think of “impact per rupee.” A bathroom that constantly leaks into your neighbour’s ceiling or damages your own walls will cost you more the longer you delay. Fixing it first might not be glamorous, but it stops ongoing damage.
If the functional spaces are okay, then think strategically. Maybe improving the living room makes the whole house feel better, especially if you host guests often. Sometimes simply doing the entrance plus one main room changes your relationship with the home.
Write a list of rooms, score them on daily pain + safety issues + future damage risk, and start where the total score is highest. It’s more honest than just picking what looks easiest or cheapest on paper.