Land sharks in connivance with officials have established residential colonies in flood zone of Hindon riverbed. After the administration had issued the notification for acquiring farmland is Chhajarsi village, the construction work in illegal colonies has been speeded up. The officials of irrigation department, (tehsil) revenue department and police are allegedly conniving in this illegal work. The land mafia has torn into shreds the court order banning construction of building within 200 metres of river bank. The land sharks have exploited the people keen on building dwelling units by sinking their life's saving here.