 That caused the authorities to think about this underpass at Chinnakada.Chinnakada is a complex junction where roads from Thiruvananthapuram, Alappuzha, Downtown, Sengottai, Ashramam, Kollam Beach and the City bus stand road meets.Preliminary design for underpass was prepared by NATPAC" (NATPAC - National Transportation Planning and Research Centre)" involving the acquisition of of government land on a temporary basis.