The Ministry of Civil Aviation has given green signal for expansion of Agartala airport and its conversion to an international airport to boost region's connectivity with Southeast Asia. For the purpose, approximately Rs. 400 crore has been allocated and the works will start soon. The Union Minister for State for civil aviation Jayanta Sinhatold media persons in Agartala today. <br/><br/>Shri Sinha on a visit to Tripura today also called on Chief Minister Manik Sarkar.