Who decides what a Money Bill is

The Speaker’s certificate under Article 110(3) is final as to whether a Bill is a Money Bill, and Article 122 keeps the courts out of proceedings in Parliament. Yet in Rojer Mathew, 2019, a five-judge bench doubted whether Puttaswamy (Aadhaar), 2018, had applied the test correctly and referred the question to a larger bench. The honest one-line answer is therefore: final in the House, and under reference in the Court.