The Chalai Heritage Street project remains stalled as Thiruvananthapuram Corporation and SCTL differ over funding and implementation. Thiruvananthapuram: The much-touted heritage street project at Chalai market is likely to be delayed as Smart City Thiruvananthapuram Ltd. (SCTL), the implementing agency, can start the first phase. T'puram: Redevelopment of the historic Chalai market area in the city has once again come to a halt due to funding shortages and administrative delays.