The India Infrastructure Report 2008 discusses: competitive bidding models for infrastructure projects and critical factors required for a minimum subsidy model to succeed; models on auction bidding for rural infrastructure, e-governance, and multi-channel delivery mechanism; tolling and payment mechanism models for roads, railways, and airports; models for public service financing and affordable housing; compensation models for land acquisition and inclusive development of SEZs; m odels for solid waste management, rural water supply, and sanitation; PPP models for health care, primary education, vocational education, and eco-tourism.