Have gone for Grundfos finally. There were some Cromption and Kirloskar models being pushes by shop keepers. But they are ordinary pumps with chinese tanks and controls. So in Delhi, there was not much of a choice left. There was a leader brand (now owned by Grundfos), but it was all plastic. (price Rs 13K against Grundfos Rs 20K). Thankfully Grundfos has opened their own service center, so the service should not be a problem.