Delhi Chief Minister Mrs. Shiela Dikshit today said that Social sector development, regularisation of unauthorised colonies and providing affordable houses to economically weaker sections will be the top priority of Government in the days to come. Delivering her 12th annual address to top officials of various departments at Delhi Secretariat, Mrs. Dikshit also identified further streamlining bus transport system and increase in application of e-governance as other focus areas of her government. She said, the water distribution system in the city needs reform for which government will strive hard to improve upon the existing system.