The Coastal Regulation Zone Notification, 1991 and the recently issued CRZ Notification, 2011, prohibits the mining of sand, rocks and other substrata material including limestone except rare minerals like, monazite, rutile etc and exploitation of oil and natural gas.
All activities which are permissible under these Notifications are required to obtain clearance under these Notifications. Mining of the sand, rocks and other substrata material is expected to cause damage to the Coastal environment including the Sea water intrusion.
The CRZ Notification indicated in parts (a) & (b) above are uniformly applicable in CRZ areas including elevated coastal areas. Read the full report here.
Source: Steelguru.com.