If you're looking for the best, I'd say the Canon 5d mark3 with the Canon 17mm tilt/shift lens. But that might be overkill for your needs and budget. The Canon T3i or Nikon D5100 would both be good options. A tripod would be more important than a fast aperture lens. Keeping the camera perfectly level is very important when using a wide angle lens. Plus with a tripod you can shoot longer exposures in low light and still get sharp photos. Shooting on a tripod at f/8 will be better than shooting handheld at f/2.8 anyway. If you get too wide you'll get distortion at the edges of the frame. But if you want really wide, look for something in the 10-12mm range. Just make sure it's NOT a fisheye lens.

This is to do with specific design rules - this is the brief history : Vastupurusa For the basis of Hindú architecture often reference is made to Vastupurusa or “the spirit of the site”. One legend explains this as follows. There was an evil demigod (bhuta) who was born during Siva’s fight with the Asur Andhaka. This bhuta possessed a terrifying countenance and an insatiable hunger. The legend goes that having done great penance, the bhuta won a boon from Siva that allowed him to swallow the three worlds that constitute the Hindu cosmos. As this being stretched himself and began to occupy the heavens, he fell flat on the earth. The various gods and demigods seized this opportunity and pinned various parts of his body to the ground, rendering him helpless. This being came to be called Vast (or Vastupurusa) because the gods and demigods managed to lodge themselves on his body. Legends hold that the deities, in pinning him down, occupied different parts of his body and continued to reside there (Figure1). In order to satisfy his hunger, Brahma ordained that he receive offerings from people on building sites before construction. It might be a good idea to get a local designer who is aware of Vastu laws to help with this ?! Check 'find a pro in my area'

Mohammad. I understand your program. You may be lost in the details at the moment. Please do follow and trust the advice given here by all these people. You are about to embark on a reasonably expensive journey. Get professional help with someone who you can sit down at a table and brainstorm with them your ideas and intentions. There are Architects and there are professional building designers who are members of the American Institute of Building Design (AIBD) who are well versed in projects such as yours. I personally love a design challenge. After 38 years designing homes and special use buildings I enjoy this type of challenge the most. I am in Ohio and may not be close to where you are but I am sure with a little investigation you will find the best design professional for you.

Thank you Marie. I'm herewith attaching couple of pics that were taken when the house was newly constructed. I wish I could take latest ones but it is a total mess now. But you'll get a fairly better idea with an empty house. One picture, taken in long-shot, shows the lateral part of the kitchen hidden behind the shelf and Arch (I brought down this Arch now). The second one shows the kitchen door showing only part of the kitchen interior. I've annotated the pictures wherever necessary. Hope they're not distracting. As you can clearly see, this is an old-styled construction even though this house was constructed barely 6 years ago! In an attempt to make the home look contemporary, my current project involves either 1 . Bringing down the concrete shelves completely and replace them with wooden cabinets/wardrobes. I've already brought down few concrete shelves in other rooms. OR 2. Alternatively, overlaying few of existing shelves with wooden doors to cover them up. Either way, the appearance is more or less the same once the furnishing is completed. At this juncture, this decision of 'Open Versus Closed kitchen' is holding me back from proceeding to the next phase of remodeling - Dropped Ceilings.