Dear Ramya
The cost of construction depends on the plan, elevation of the building and specifications to be used with the place of construction. There are Neary 50 -60 items are used in the building and not possible to elobrate here. You should visit gharexpert.com site wher in construction you will find specification for each of raw material and construction technic of all the process ue=sed in building work. Spent time to read the specifications in detail which will be help full to you during construction. Smoe link are as given
http://www.gharexpert.com/articles/Bricks-947/Bricks-Quality_0.aspx
http://www.gharexpert.com/Home/Show_Multiple_Images.aspx?ind=8
http://www.gharexpert.com/articles/Start-Construction-1406/Through-rate-contractor;-guidelines-better-rel_0.aspx
http://www.gharexpert.com/Estimator/detail_cost_estimate.aspx