What a beautiful house, Shahbaaz! I live in a similar house - a 150-year-old colonial bungalow in Kumaon. You have already received lots of excellent advice from better-qualified people, so all I would say is, keep its age and heritage character the central theme. The white tiles do clash, I am afraid ... flooring with terracotta tiles would echo the roof and look lovely. The columns and the arches over the doors and windows are amazing. But I'd say, leave it all chuna-painted - there's a beauty and softness to it. Don't let the painters add too much neel (indigo) in the limewash -- in the hills where I live, they put far too much if I don't watch out and the result is a harsh white. Natural lime has a softer, creamy look.

just sharing the colors of the furniture the grey is going to be the body of the sofa and back cushions...the purple is the color of two small cushions which will be on the sofa.. what curtains do I think will go with these colors

I know all the houses in side would be beautiful, but went with the last one as the tiles outside give me enough info to have an idea of how beautiful ( if not beautiful) at least layout wise and material wise, how it would be, Now, can we see the inside please? hehe*

that is what i have added if you can see the pic above.. want some suggestions on partition that i can use between dining and sitting