Correct Option (D)
The Trade Disputes Act of 1929 established a system of tribunals, specifically Courts of Inquiry and Boards of Conciliation, to investigate and resolve industrial disputes. Furthermore, it imposed restrictions on strikes and lockouts, particularly prohibiting them in public utility services without prior notice and declaring certain strikes or lockouts illegal.
Incorrect Options:
A) The Act did not address the participation of workers in the management of industries. Its focus was on dispute resolution and strike regulation.
B) The Act did not grant arbitrary powers to management to suppress industrial disputes. Instead, it introduced a formal mechanism for dispute resolution through tribunals.
C) The Act did not provide for intervention by the British Court in the event of a trade dispute. Its provisions established domestic tribunals for this purpose within British India.