Large glazed living rooms leave few solid walls, so the one that remains carries the whole room. Decide early whether it takes a mural, which is printed to the exact size of the wall, or a repeating design from a roll. A mural needs the final measurements taken after wall lights and switch plates are fixed, because holes cut later show.
Humidity is the thing to plan around. A villa used as a second home may be closed for weeks, and a shut room near the river and the mangroves grows mould on anything that holds moisture. Vinyl wallpaper hung with anti-fungal paste stands this better than paper-backed wallcoverings, and it helps a great deal if the room is aired, or the air conditioner run on its dry setting, now and then. Keep wallpaper off the wall that backs onto a bathroom and off the wall beside deck doors that stand open to the damp evening air.
As a guide to cost, a living-room wall 16 ft wide and 10 ft high is 160 sq ft. At approximately ₹85 to ₹160 per sq ft installed, that is approximately ₹13,600 to ₹25,600. Imported rolls and custom murals are priced separately.
Can wallpaper be used in a Nerul villa that is closed for part of the year?
Yes, with vinyl wallpaper on a dry, primed wall and anti-fungal paste. Ask whoever looks after the house to air the rooms, or to run the air conditioner on its dry setting, from time to time. A shut, humid room encourages mould on every surface.
Is wallpaper suitable for the wall beside pool or deck doors?
It is better avoided. That wall takes damp air and splashes whenever the doors are open. Use paint or PVC panels there and keep the wallpaper for an inner wall of the room.