Sounds to me like you might need an architect. DIY design sounds like a bad idea in this case. If I was an owner I would want a pro involved.

Tsilanko, I would always recommend professional installation where needed. But what I am doing here is suggesting that WHEN you are planning to build or renovate, to consider how your plans will affect you in 20 or 30 years time. Split levels are very hep when you are young. A kitchen 3 steps down at 30 is rarely a problem, but might be a hazard at 60, or, as Marjie1059 suggested, if you break a leg. ... All my parents' homes were terrible for old people. They were forced to move to a bungalow in extreme old sge because the location and design of their home was more suitable for an active young couple with a large family than for an elderly couple with stroke disabilities. I would not want to move again, so my present home has features built in that make ageing in place simpler. Mostly small changes, like grab rails, and lever handles on doors and faucets. A major disability suddenly suffered requires major changes if permanent. I did look at this because it came up in the discussion, but if you look at the heading, Planning for Disability, it means just that. Plan ahead so you don't have to make expensive changes later on. But thank you for your advice, yes, major changes are not in the DIY domain.

Hire a local designer who can actually see your space and where the plumbing connects are located. Generic layouts will never help with your specific space.

Thanks for clarifying Sneha. Its a north facing property so the TV unit is placed in north , are you willing to compromise on that if you need a pooja room in NE. Please include the directions in the plan to avoid confusion. A four seater dining may not be of much help as the width of the table remains approximately same its only the length that is reduced. We also need to maintain safe distance from the TV unit plus we have a french window on the west side. It may require some structural changes, in discussion with your designer, to the plan to accommodate a pooja room without compromising on the looks. Are you willing for that. Thanks, Nitin Cornerstone Designs.