supply of raw and building materials for various villages at block kalanaur and district rohtak , a1 ) interlocking paver blocks m-35 grade 60mm thick smooth face ( dumble shape ) ( isi ) , a2 ) interlocking paver blocks m-35 grade 60mm thick smooth face ( dumble shape with colour ) ( isi ) , a3 ) interlocking paver blocks m-40 grade 80mm thick smooth face ( dumble shape ) ( isi ) , a4 ) interlocking paver blocks m-40 grade 80mm thick smooth face ( dumble shape with colour ) ( isi ) , a5 ) grass paver blocks m-35 grade 60mm thick smooth face ( isi ) , a6 ) interlocking paver block m-35 grade 50mm thick ( 200x60mm double shape ) ( isi ) , a7 ) interlocking paver block m-35 grade 40mm thick ( 200x60mm double shape ) ( isi ) , a8 ) precast cement concrete 1:2:4 with stone aggregate 20mm normal size in kerbs stone size ( 300x150x300mm ) ( isi ) , a9 ) precast cement concrete 1:2:4 with stone aggregate 20mm normal size in kerbs stone size ( 300x150x450mm ( isi ) , a10 ) precast cement concrete 1:2:4 with stone aggregate 20mm normal size in kerbs stone size ( 300x100x450mm ( isi )