Rotate your living room setup 90 degrees counter clockwise. Change front entry door to where the tv/ entertainment unit was. Convert entry foyer into puja room.

Hi, Thanks for your replies.

@stiruproad: This is an apartment flat, so I'm not in a position to change the front door layout. Any other suggestions?

you could position it in the balcony adjoining the dining.

Woah! Thanks a ton @Studio Indigo.

I think this is what I'm going to do. If it doesn't cost a bomb that is! :)

you can create a mandir on the back side of single sofas in living room, facing the corridor . It would be the center of the house

mi i help

Ideally pooja should be next to kitchen which is also preferred by most in AP & Bangalore.
As per Vasu it should be in East or NorthEast of the flat area & while you pray you should face towards East.
occupying foyer area is good but need to divert the flow to avoid walking with footwear in front of pooja room, so need to change the entry which I think difficult from Prestige as they wouldn't accept that change
The other option is at Wash Basin
However you should hire a professional so that you get right & full guidance.
If you've already hired then you can demand to fulfill this requirement as well.

U CHOOSE THE CORNER OF NE DIRECTION. THIS IS 100% VASTU ORIENTED DIRECTION