The head of the State Finance Ministers' panel Asim Dasgupta today met Union Finance Minister Pranab Mukherjee to find a common ground on the proposed constitutional amendment bill for roll out of Goods and Services Tax from next fiscal.The meeting assumes significance given Mr. Mukherjee's reassurance to states that he did not intend to become a super Finance minister. Mr. Dasgupta later told reporters that this was a very useful meeting aimed at convergence on issues relating to constitutional amendment for GST.Earlier the Empowered Committee of State Finance Ministers on Goods and Services Tax (GST) had rejected a draft of the constitutional amendment. Yesterday Mr. Pranab Mukherjee said in Parliament that his ministry is waiting for the views of the Empowered Committee of State Finance Ministers on the proposed constitutional amendment.