By which amendment the provisions of workers' participation in management was incorporated in the Indian Constitution, A-65, B-22, C-1

The provisions of workers' participation in management were incorporated in the Indian Constitution by the 73rd Amendment. This amendment aimed to enhance the role of workers in the decision-making process within organizations and improve their representation in management.

The 73rd Amendment, enacted in 1992, provided a constitutional status to the Panchayati Raj institutions and included provisions for the participation of workers in the management of industries. It was a significant step towards acknowledging the importance of collaborative decision-making between management and labor, thereby fostering a more equitable working environment for all stakeholders involved.

Hence, the correct answer to your question is none of the options provided (A-65, B-22, C-1). The accurate amendment relating to workers' participation would be the 73rd Amendment.