There are following initial steps to be taken for laying the foundation.
1: Clearance of site
2 Layout of the building
3 Excavation in foundation
4 Laying cement concrete in foundation
5 Laying brick work in foundation
6 Laying mild steel and cement concrete for footing of RCC column
7 Laying 40 mm thick horizontal DPC

For more details read articles in the section “Start Construction” available at link: http://www.gharexpert.com/category/1326/Start-Construction-0.aspx?PL=2&CatID=1326&Category=Getting%20Started&Page_Id=1
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