Kircher !! Hi from Frankfurt,
You cannot find any shop like toom baumarkt in Bangalore.Getting the tools and all necessary items would be bit more difficult.

You can easily find a labor contractor to make the structural work (rohbau). [you have to supply the materials]
Rest of the things you can ...

Anyone having experience with AAC / CLC blocks ?

Rather than paying heavy price for Sand.. Is it not cheaper to use Ready mix plaster ? Does anyone have any experience ?

The first step is to use Energy Efficient Appliances, Investment on Energy efficient Appliances is must, before considering solar energy.

http://www.thealternative.in/lifestyle/ ... er-system/

http://basilenergetics.com/Products.html

Please check this ..

http://www.mybdasites.com/viewtopic.php ... 4&start=10

Search for PUF sandwich roof panels / EPS sandwich panels.. These panels are structurally strong and have very good insulation values.. There are few local manufacturers in Bangalore..