The Delhi government will construction 83 metalled roads and streets in three unauthorised colonies in North-West Delhi "despite the BJP obstructing our initiative to develop and regulate unauthorised colonies in the national capital", announced Chief Minister Arvind Kejriwal on Sunday.Kejriwal was addressing a huge gathering in Shalimar Bagh constituency where he said that all the unmetalled roads of unauthorised colonies under Aam Aadmi Party MLA Bandana Kumari's area would be constructed in the next five-six months."The project would cost approximately Rs 513.81 lakh and would cover a stretch of 4.7 kilometers in the three colonies, namely: Shalimar Bagh village, Sahipur, and Haiderpur, Ambedkar nagar colony," a note released by the Delhi government said.Kejriwal said it is really unfortunate that the Modi government at the Centre is trying to destruct unauthorised colonies in Delhi just because "it considers them to be making the national capital dirty"."Modiji has been touring a lot lately -- from France to Belgium, Japan, the USA and Australia -- and now he says that he will transform Delhi to look like London. He also says that unauthorised colonies are dirty and should be destructed...," Kejriwal said.The AAP chief also took a jibe at the Central government for filing a case against PWD Minister Satyendar Jain and said that the Delhi government would not stop short of regulating the unauthorised colonies.