I am also against sand mining and the mafia behind that which is not only looting the nature and paving a way for colossal disaster, they also post danger of river expanding to other areas. Normally rivers have their own path and they would be flowing in that direction during peak seasons and heavy inflow of rain water, and by digging deeper and excavating sand and also through side ways, the mafia are expanding the river flow and thus cause floods to the nearest town or city. Moreover the river sand is not fit for construction as per my knowledge. The filter sand may not have the strength as opined by the engineers and thus most of the engineers wont recommend the river sand. Still the mafia are managing their business with skill and fooling the builders that it is good quality and not taken from river. That is why modern buildings wont last long.
'Idhuvum Kadandhu Pogum "
Even this challenging situation would ease