THIRUVANANTHAPURAM: The Kerala Infrastructure Investment Fund Board has given sanction for the economic triangle linking Vizhinjam, Kollam and Punalur. The initiative is aimed at creating an industrial corridor that would stimulate the state’s economic growth, said Finance Minister KN Balagopal. The minister was briefing the press after the 51st board meeting of the KIIFB chaired by Chief Minister Pinarayi Vijayan. …