Which of the following statements are correct?
A. Finance Commission is a constitutional body, constituted by the President under article 280 of the constitution.
B. First Finance Commission was constituted under chairmanship of K.C. Niyogi.
C. The 15th Finance Commission for the period 2020-25 was constituted with N.K. Singh as chairman.
D. The R Chelliah Committee was constituted in 1994 for suggesting reforms in banking system.
Choose the correct answer from the options given below :