To overcome the difficulties faced by public in public transport system, the government of India started the METRO project in which the government involved private sector participation to get the benefits of efficiency of private sector. The project was great success as lacs of people are enjoying the metro service to move from one place to other. (a) State the type of enterprise mentioned in above last. (b) Name the 'PPP' providing metro service in Delhi. (c) Give any two features of PPP.