The concessionaire or contractors/ sub-contractors of the national/ state highways face a possible levy of Goods and Services Tax (“GST”) on their supplies. However, GST is exempted for services when toll is paid to access the roads or bridges. The exemption is also applicable on payment of annuity for access to roads. A contract in relation to highways may deal with several aspects such as construction of a highway, shops, operation of highways, maintenance of highways, collection of toll or separate charges like overhead charges, etc. Further, with different models of highway projects, it becomes essential to analyse the nature of supply, party rendering such supply to determine if any exemption or concessional rate is available.