Tirupati: Telugu Desam party organised a dharna at 'Nalugu Kalla Mandapam' in Tirupati in protest against government's in action in addressing the sand problems in the state. Former MLA M Suguna, former TUDA Chairman G Narasimha Yadav and other leaders criticised government for pushing people into severe hardship with the non availability of sand. Entire construction sector has collapsed throwing lakhs of people depending on it into miseries.