Which of the following act was approved by the President Ram Nath Kovind, recently?

President Ram Nath Kovind gave his assent to the amendments to the Indian Stamp Act, 1899,which were introduced in the Parliament as part of the Finance Act 2019. These amendments have been introduced to regularise the system of levying stamp duty and to help in curbing tax evasion. For the stamp duty rates, the duties levied by Maharashtra will be taken as a benchmark as the state accounts for 70% of the total collection. They propose creation of a legal and institutional mechanism which will enable states to collect stamp duty on securities market instruments at one place by one agency(through the Stock Exchanges or Clearing Corporations authorised by the stock exchange or by the Depositories). They also propose a mechanism for appropriate sharing of the stamp duty with relevant state governments on the basis of state of domicile of the buying client.