NGT slaps ₹10 crore fine on Radisson Blu Resort in Mamallapuram Updated: Updated: The resort has made unauthorised construction in No Development Zone Share Article The resort has made unauthorised construction in No Development Zone Radisson Blu Resort Temple Bay and GRT Hotels and Resorts Pvt Ltd, Mamallapuram have been directed by the Southern Bench of the National Green Tribunal to pay ₹10 crore within two months as environment compensation to the State Coastal Zone Management Authority for making unauthorised constructions to the tune of 1,100.37 sq.m in No Development Zone — 0-200 m from the High Tide Line (HTL). Radisson Blu, Temple Bay, Mamallapuram is a unit of GRT Hotels and Resorts Pvt Ltd.