If any question arises whether a Bill is a Money Bill or not, whose decision shall be final?

Under Article 110(3) of the Constitution of India, if any question arises regarding whether a Bill is a Money Bill or not, the decision of the Speaker of the Lok Sabha (House of the People) is final [c3, t5, t7]. This decision cannot be questioned in any court of law, in either House of Parliament, or even by the President [c1, c2]. When a Money Bill is transmitted to the Rajya Sabha for recommendation or presented to the President for assent, the Speaker must endorse it with a certificate stating it is a Money Bill [c1, t1]. While the Supreme Court has noted that judicial review is restricted, it generally presumes the legality of the Speaker's decision unless there is a case of gross unconstitutionality or blatant illegality [c5, t4]. Thus, the Speaker holds the ultimate authority in this certification process [t2, t3].

Sources

1. [1] Laxmikanth, M. Indian Polity. 7th ed., McGraw Hill. > Chapter 23: Parliament > Money Bill. > p. 247
2. [2] Indian Polity, M. Laxmikanth(7th ed.) > Chapter 23: Parliament > Money Bill. > p. 247
3. [3] Laxmikanth, M. Indian Polity. 7th ed., McGraw Hill. > Chapter 23: Parliament > Unequal Status with Lok Sabha > p. 260
4. [4] Introduction to the Constitution of India, D. D. Basu (26th ed.). > Chapter 12: The Union Legislature > p. 248
5. [5] https://en.wikipedia.org/wiki/Money_bill