Section 19(b) in Tamil Nadu Groundwater (Development and Management) Act, 2003
(b)if such person cannot be found, by affixing such order or notice on some conspicuous part of his last known place of residence or of business or tendering such order or notice to some adult member or servant of his family or by causing it to be affixed on some conspicuous part of the land or building in which the well is being sunk;
