THIRUVANANTHAPURAM: The Capital Regional Development Project-II, the State consultant for the implementation of the proposed Outer Area Growth Corridor (OAGC) on either side of the proposed Outer Ring Road (ORR) in Thiruvananthapuram, has suggested eight economic clusters in the district as part of the OAGC initiative. Since the 78-km ORR will be from Vizhinjam to Navaikulam, the CRDP proposed the economic zones at Vizhinjam, Kovalam, Kattakada, Nedumanagad, Vembayam, Mangalapuram, Kilimanoor, and Kallambalam. The State is expected to give the final approval for the proposal soon.