Ahead of the Union Budget 2013, there's been lots of talk about what's likely to happen on the taxation front. Experts, Mukesh Butani, chairman of BMR Advisors; B M Singh, former chairman of Central Board of Direct Taxes; S. Gayathri, member of Confederation of Indian Industry's (CII) National Committee on Direct Taxes and head of tax and regulatory at Essar Energy, and V Vaidyanathan, chairman and managing director of Capital First Limited, discuss some of the key issues covering topics like taxing the super-rich, GST, Inheritance tax, gold import duty hike and I-T exemption limits.