Hello Nitin, There is not great all pre-fabricated stair I can recommend. The best thing is to find a stair builder that can make something to fit your needs. We do high end interior and some exterior work. We make our stairs in Seattle, and can then ship them anywhere. If you don't want to work with a company from far away, For USA and some international stair builders I recommend going to www.stairways.org and finding a SMA member in your area who can help. Good luck, and if you want to go with us, you find more info at www.NKwoodworking.com

Most my doors were already here, but I did have one moved over, about 6 inches. However, the entire space was demo'd, and rebuilt, so that's not the best example to draw from. If you want the door hidden, in a pocket, yes, you will need a skilled carpenter. Essentially, the opening header and frame, will become twice it's size, with the "pocket" part, hidden behind the wall. The studs/supports will need to be removed to make a space for the door to slide into. Do you have any switches or outlets on the fireplace wall?

Hello Ramakrishna M, This question sounds more for a structural engineer. Also you will need to check if it is legal to do it in your house in the first place especially if you are planning to make an RCC staircase. An Interior designer can help to beautify your space and provide advice on the planning at the max. I could not answer your question directly but hope it puts you in a better direction. If you need Interior Design services feel free to contact us: 9820942680, designospire@gmail.com, Follow us on Facebook @designospireIDS www.designospire.com

example: winding staircase, source internet Little modification need to be done for entrance lobby opening, where you could accommodate a shoe rack and the complementary vertical wall can act as a amazing entrance decor wall wall in Kerala style heavy color play or texture/wall cladding with brass mural.. by doing this you get space to mount TV unit and a good space for sofa arrangement (make sure sofas are light as the space is less to accommodate baggy sofas), staircase can be made in the shape shown in sketch plan, with marble finish on the foot steps (or as per interiors), space in the bottom of staircase next to master bedroom wall can be utilized for chest of drawers or a tall furniture, make sure the staircase bottom part to be casted smooth in finish.