110 villages paid builders committee formed apartment builders bwssb addressing bwssb cracks issue source chief engineer individual homes comply homebuyers pending amount 3722 apartment complexes 2008when obtaining property registration homeowners claim supply apartments additional 775 mld address complaints threemember committee apartment residents collected money collected payments collected deposits connection drive plumbers overcharging cauvery pipeline water connection legal action sewerage board bwssb plumbers residents concerns comply legal action collected connection fees cauvery water connections bangalore water supply internal water connections received multiple complaints objection certificate noc verifying builder records