The Planning Commission Deputy Chairman Dr Montek Singh Ahluwalia today said that the union government’s nod for the Kochi Metro Rail Project is expected in a few weeks time.Speaking to media persons in Kochi after visiting the sites where the preparatory works are going on for the project, Dr Ahluwalia said the work on the project is expected to begin by April, after central clearance is obtained.He clarified that the Planning Commission is not opposed to the project and added that he was satisfied with the progress of the preparatory works undertaken so far.On the issue of private participation in the project, he said it was up to the Kerala government to decide